Slow Cooker Roast Beef (Sliceable!)

12 servings
Prep Time 10 minutes
Cook Time 1 hour 30 minutes
Total Time 1 hour 40 minutes

Slow Cooker Roast Beef can be sliced into thin, tender pieces and is perfect for a special dinner, holiday meals, or amazing sandwiches!

Be prepared to have your mind-blown by this ultra-tender, juicy flavorful beef roast – and it’s made in your slow cooker! With dinner ready in under 2 hours, it tastes like a shortcut Prime Rib Dinner but it’s also sliceable so you can make the most amazing sandwiches.

Slow Cooker Roast Beef finished roast sliced on wooden board

Sabrina’s Slow Cooker Roast Beef Recipe

This is the ULTIMATE Slow Cooker Roast Beef. Yes, no joke, this was actually made in a slow cooker and I made it with simple ingredients. The crust is gorgeous because I browned it before cooking, but that amazing tender medium center of the roast beef is 100% slow cooker.

My Slow Cooker Pot Roast recipe (or Crockpot Roast Beef) is so tender that you can cut it into slices. While it is great for a special dinner during the holidays or a family dinner with other comfort food. But the way I love it best is sliced thinly in sandwiches – it’s so life changing that you will never want to buy the deli variety again!

Ingredients

  • 5 pounds Chuck Roast: I’m using a beef chuck roast but you can use any fatty meat cut. You want a fattier cut, like chuck roast, to really ensure it stays moist during the cooking process. If you use a piece of leaner meat, it won’t render down the same and might actually become tough. See the Best Cuts of Meat section below for more info on specific cuts for this recipe.
  • Seasoning: 2 teaspoons Kosher Salt and ½ teaspoon Coarse Ground Black Pepper are use along with 2 cloves minced Garlic for extra flavor. Use 2 teaspoons of garlic powder if you don’t have fresh garlic cloves.
  • 1 tablespoon Vegetable Oil: This is used for searing the roast before cooking to give it that amazing crust and it seals in the juices for a more flavorful, tender and juicy roast.

How to Make

Time needed: 1 hour and 40 minutes.

  1. Season the Roast

    (Optional step: Dab the roast dry before adding seasoning so it sears better.) Rub the roast with the salt, pepper, and minced garlic.

  2. Sear the Meat

    Heat the oil in a pan on medium-high heat and sear the roast for 3-4 minutes on each side until browned.

  3. Slow Cook

    Move it to the slow cooker and cook on low for 90 minutes or until the internal temperature reaches 135 degrees for medium-rare or 140 degrees for medium. **Note: Cook time is approximate, use the thermometer to get the perfect finish no matter what size your meat is.

  4. Rest Then Serve

    Remove the roast and allow it to rest on a cutting board at room temperature for 10-15 minutes before slicing. Enjoy! Slow Cooker Roast Beef that you can slice into tender slices cooked to a perfect medium temperature. Enjoy for dinner or sliced thinly in sandwiches, you will never buy the deli variety again!

Recipe Card

Slow Cooker Roast Beef

Slow Cooker Roast Beef can be sliced into thin, tender pieces and is perfect for a special dinner, holiday meals, or amazing sandwiches!
Yield 12 servings
Prep Time 10 minutes
Cook Time 1 hour 30 minutes
Total Time 1 hour 40 minutes
Course Main
Cuisine American
Author Sabrina Snyder

Ingredients
 

Instructions

  • Rub the chuck roast with the salt, pepper and garlic.
  • Heat up your slow cooker insert (if cast aluminum) or a large pot on high heat with the vegetable oil.
  • Sear the beef on each side for 3-4 minutes.
  • Put the beef and the drippings from the pan into your slow cooker.
  • Cook on low for 90 minutes.
  • Using a standard meat thermometer or a slow cooker with a thermometer probe, cook to 135 (medium rare) or 140 (medium) degrees.

Notes

Critical Note: Due to the differences in cuts, different sizes, and differences in slow cooker temperatures (e.g. slow cooking on low is not specific and can vary in range between different manufacturer’s specifications), results can vary. This is why you will have to use a thermometer to get to the desired finish, no matter what size it is. 90 minutes on low for my 5-pound chuck roast was the perfect weeknight meal for me.

Nutrition

Calories: 351kcal | Protein: 36g | Fat: 22g | Saturated Fat: 9g | Cholesterol: 130mg | Sodium: 540mg | Potassium: 627mg | Vitamin A: 25IU | Vitamin C: 0.2mg | Calcium: 33mg | Iron: 3.9mg

Chef’s Note: Use A Thermometer for Perfection

This is one of the relatively few recipes I have that a thermometer is called for since it needs to cook to such a specific temp to get the perfect finish. Depending on how thick your cut of beef roast is, you will know by temperature when it is done. The timing is only a guideline on this one and the steps are for the method. I wouldn’t guess or eyeball for something this specific. Use a thermometer for the perfect finish: 135 degrees (medium rare) or 140 degrees (medium).

Can This Be Made Ahead?

Yes, but it’s best made and served fresh. Cook according to the instructions and reheat in the slow cooker on low for about 45 minutes before serving hot for a slow cooker meal, or just slice and serve cold for sandwiches.

Nutritional Facts

Nutrition Facts
Slow Cooker Roast Beef
Amount Per Serving
Calories 351 Calories from Fat 198
% Daily Value*
Fat 22g34%
Saturated Fat 9g56%
Cholesterol 130mg43%
Sodium 540mg23%
Potassium 627mg18%
Protein 36g72%
Vitamin A 25IU1%
Vitamin C 0.2mg0%
Calcium 33mg3%
Iron 3.9mg22%
* Percent Daily Values are based on a 2000 calorie diet.

Best Cuts of Meat for Roast Beef

You want a fattier cut, like chuck roast, to make sure that it stays moist during the cooking process. I skipped any beef broth because the meat has enough juices, but the technique is what is golden here.

  • Pick One of These Beef Cuts: Ribeye Roast, Beef Short Ribs, Brisket (Point Cut), Tri-Tip Roast, Top Blade (Flat Iron Steak).
  • Avoid these Cuts: Cuts to avoid for this recipe include Round Tip, Eye of Round, Bottom Round (Silverside), Top Round, and Sirloin Tip, as these tend to be too lean and can become tough and dry when slow-cooked.

How to Store

  • Storing: Be sure to store within 2 hours of slicing. Place any leftover chuck roast in an airtight container and refrigerate for up to 3-4 days.
  • Reheating: Reheat gently in the oven at 300 degrees for 10-15 minutes until warmed through, or in the microwave at a medium setting in short bursts to avoid drying out.
  • Freezing: Wrap tightly in plastic wrap or foil, place in a freezer-safe container, and freeze for up to 3 months. Thaw in the refrigerator overnight before reheating.

Serving Ideas: Sandwiches

  • Holiday Meal: This roast beef recipe is special enough to be the main dish for your Christmas dinner! If you’re looking for a Side Dish to round out your holiday meal, I would recommend Classic Steakhouse Creamed Spinach and my Richest, Cheesiest, Crispy Mashed Potatoes.
  • Sandwiches: Of course this sliceable, tender roast beef makes the perfect sandwiches! Lightly toast some hoagie rolls, add some mayo and slices of provolone. Then pile the hot meat over the cheese, add some arugula leaves, and finish with some Horseradish Sauce for the ultimate roast beef sandwiches!

Frequent Questions

Do you add water to the recipe?

No cold water or beef stock is needed in this recipe. The meat creates its own moisture. This braising liquid can be used as an Au Jus dipping sauce similar to a French dip sandwich!

I don’t have the type of thermometer that stays inside the crock pot. Can I just take the lid off periodically and stick a thermometer into the meat?

Yes, that works great!

What’s the cooking time for a smaller cut of meat?

Cooking time might be closer to an hour so check it then. You are looking for a temperature rather than a time and slow cookers can run hot so look for 135 degrees (medium rare) or 140 degrees (medium).

Do I let the roast to come to room temp prior to browning and placing in the crock pot?

No need to allow it to come to room temperature.

Can I add vegetables to the crockpot?

Vegetables like sweet potatoes, yellow onion, baby carrots, and celery are great in roasts but are not added here because they would take away from the balance of the heat needed for cooking the roast. If you’re doing a long-cooked slow roast for several hours, feel free to add chopped versions around the roast. I would add two tablespoons of Worcestershire sauce over top.

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Variations

  • Herb-Crusted Variation: To add even more incredible flavor, add 1 tablespoon dried rosemary, 1 tablespoon thyme, and 1 teaspoon oregano (or just three tablespoons of Italian seasoning) to the garlic and salt and pepper and rub. Cook as usual.
  • Spicy Cajun Variation: Add 1 tablespoon Cajun seasoning to the base seasonings and an optional ½ teaspoon cayenne pepper if you don’t mind a spicy kick. Serve with my Texas Roadhouse Cajun Horseradish Sauce copycat.
  • Garlic & Rosemary Butter Baste: Add ¼ cup softened butter mixed with 2 minced garlic cloves and 1 tablespoon chopped fresh rosemary at the beginning of the slow cook. Baste the roast halfway through cooking with this butter mixture for a rich, flavorful crust. No cooking time changes are necessary.
  • Onion Version: You can add one package of dry onion soup mix to the roast before cooking for a delicious variation! Or, instead, add a tablespoon onion powder or two tablespoon of chopped fresh onion. for an extra depth of flavor. So easy!

More Slow Cooker Beef Recipes

2 image pin of Slow Cooker Roast Beef

Photos used in previous versions of this post.

Slow Cooker Roast Beef that you can slice into tender slices cooked to a perfect medium temperature. Enjoy for dinner or sliced thinly in sandwiches, you will never buy the deli variety again!
Slow Cooker Roast Beef that you can slice into tender slices cooked to a perfect medium temperature. Enjoy for dinner or sliced thinly in sandwiches, you will never buy the deli variety again!
Slow Cooker Roast Beef that you can slice into tender slices cooked to a perfect medium temperature. Enjoy for dinner or sliced thinly in sandwiches, you will never buy the deli variety again!

About the Author: Sabrina Snyder

Sabrina is a professionally trained Private Chef of over 10 years with ServSafe Manager certification in food safety. She creates all the recipes here on Dinner, then Dessert, fueled in no small part by her love for bacon.

Sabrina Snyder is a professionally trained personal and private chef of over 10 years who is the creator and developer of all the recipes on Dinner, then Dessert.

She is also the author of the cookbook Dinner, then Dessert – Satisfying Meals Using Only 3, 5 or 7 Ingredients, published by Harper Collins.

She started Dinner, then Dessert as a business in her office as a lunch service for her coworkers who admired her lunches before going to culinary school and becoming a full time personal chef and private chef.

As a personal chef Sabrina would cook for families one day a week and cook their entire week of dinners. All grocery shopping, cooking and cleaning was done along with instructions on reheating. As a private chef she cooked for private parties and cooked in family homes in the evenings for families on a nightly basis after working as a personal chef during the day.

Sabrina has been certified as a ServSafe Manager since 2007 and was a longstanding member of the USPCA Personal Chef Association including being on the board of the Washington DC Chapter of Chefs in the US Personal Chef Association when they won Chapter of the year.

As a member of the community of food website creators Sabrina Snyder has spoken at many conferences regarding her experiences as a food writer including the Indulge Food Conference, Everything Food Conference, Haven Food Conference and IACP Annual Food Professionals Conference.

Sabrina lives with her family in sunny California.

Dinner, then Dessert, Inc. owns the copyright on all images and text and does not allow for its original recipes and pictures to be reproduced anywhere other than at this site unless authorization is given. Read my disclosure and copyright policy. This post may contain affiliate links.

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Comments

  1. I’m hoping to make this today but it doesn’t say what setting to have the slow cooker on (low, medium, high)? Looking through comments it takes 3 1/2hrs on low so is your 90mins on high?

    1. Such a busy season, I’ve fallen behind on responding to questions. How did your Roast Beef turn out?

  2. I have cooked several chuck roast in crock pot using ==mississippi pot roast ==respiece// every time it comes out stringy,,you say cut across grain but chuck has different grain sections ,i have problem telling which is which// stringy meat is just eatable if you put it on bread and kill the flavor with sause followed by toothpicks// just my opinon// maybe i am over cooking since i cook meat 3 to 5 hours,,your pictures look great// meat cooked more than that is called leather???please advise,,,thanks willie

    1. Hi Willie, perhaps you should try the thermometer probe to make sure your meat is taken out of the slow cooker when it reaches 165 degrees at the thickest portion of the meat. There’s a link to one in my blog. Let us know how it turns out!

  3. I have 5.30 lb eye of round roast . No meat thermometer. How long in a slow cooker for med rare to slice for deli sandwiches? Any approximate time would help.

    1. I don’t know about medium rare; however, rule of thumb for a 5 lb eye of round roast is 10 – 11 hours on low or 6 – 7 hours on high.

  4. Hi Sabrina, this looks so delicious would I be able to do this in my instant pot? I no longer have a slow cooker. what would the timing be for medium rare?

  5. I make a standing rib roast every year for Christmas. It’s amazing, but $$$$$$. This option worked great! And it was delicious. My only problem was that I bought a cheap beef that didn’t have great taste to begin with.

    This year, we bought 1/2 cow and the meat is delicious. And you can bet I’ll be making this with our Chuck Roasts.

  6. I was so excited to try this recipe. I followed the very simple instructions, took the roast out at 90 minutes, and it was completely raw inside. The only thing cooked were the edges I seared at the beginning. I don’t know if there is a step missing. What should I have done differently? I even had a 3.5 lb Roast, not the 5lb as noted in the recipe.

    1. I am just seeing this tonight. I am sure the recipe has long been cooked/or not but I still want to try to help.

      What temperature did you cook it at? what cut was it? Was it a uniform thickness?

    2. I do this same method. But I’ve learned that all slow cookers are different. I cook mine on low for 3 1/2 hours to get rare. Using my meat thermometer.

  7. I like this recipe a lot!!! I much prefer beef that is medium rare or rare and while the chuck is a fairly tough cut of the steer (it’s the shoulder, which gets a lot of work), the flavor of this cut is wonderful! The chuck is just in front of the rib, and is closest in flavor to prime rib, but it is not easy to cook to a tender degree. Most people use the chuck for pot roasts and stews and braise the hell out of it. While braising does produce tender meat, much of the flavor comes from all of the vegetables cooked with the roast. This recipe uses only the meat and the juices from the searing, AND IT WORKS, just like Sabrina says it does! Many commentors use roasts much smaller than 5 lbs, which don’t work as well for me. A 5 lb chuck roast will be about 2 1/2 or 3 inches thick, which usually has to be cut by your butcher. I think that is part of the secret of this roast. The other part of the method is to cooking temperature, which is about 200°F on the “Low” setting of a good slow cooker. An accurate “Low” setting as well as an accurate thermometer are essentials. Done right, using this recipe and a quality chuck roast, will come really close to prime rib flavor and texture at about one third the cost. Adding liquid is unnecessary before cooking and the jus is great. To top it all off, the leftovers freeze well for more dinners and sandwiches. Thanks Sabrina!

    1. I am so sorry, I am just seeing this tonight. I am sure the recipe has long been cooked/or not but I still want to try to help.

      If the marbling of the beef is good and even throughout that’s what matters most. If it is really lean it could be very tough.

  8. If your using smaller chuck roast for 3 people how many pounds should I get and what would the cooking time be? Also do you have a recipe for gravy for this?

    1. I am so sorry, I am just seeing this tonight. I am sure the recipe has long been cooked/or not but I still want to try to help.

      We have a lot more beef sauce recipes since this was posted, but also I would test the roast with a thermometer if possible, I haven’t tested one that size in the slow cooker.

  9. I really wanted this to be good.. it was sliceable and pink. There was nothing tender about this at all as my husband bluntly put it it was tough!
    Won’t make agan.

  10. This is great and so easy. I’m trying with frozen roast but net time I’ll try it thawed. I tried this a while ago and it was easy.

    1. Yes, make sure to let the roast rest for about 10 minutes before slicing it to allow the juices to soak in. Enjoy!

  11. Is this recipe degrees C or F?
    Just tried this today, and unfortunately didn’t work out for me. Ended up being well done as I was waiting for the temperature to rise, I’m thinking it must be the C or F problem

  12. This is my family’s go to recipe which we have at least once every two weeks. The only thing we do different is we leave it in the slow cooker until it gets very tender and almost falls apart. We love it! Thank you!

  13. I don’t have the type of thermometer that stays inside the crock pot. Can I just take the lid off periodically and stick a thermometer into the meat ?

  14. Hi!
    Just came across this and am INTRIGUED to say the least! 🙂 Very much want to try this but all I have is a shoulder roast and a bottom round roast- will either of those roasts work?

    1. The shoulder roast should work but the bottom round roast doesn’t really have enough fat on it to work with this recipe. I hope you enjoy it!

  15. Never in a million years would I have thought rare roast beef in a crock pot! This is what I did for 5 lb standing rib roast: crock on low while heating 1 cup beef broth on stove and browning meat all sides. Then paint with oil , thyme n pepper. Place in crock ribs down. A meat thermometer is imperative. Mine has a probe on a white attached to a display you set for alarm when it reaches correct temp. For med rare.
    It took 3 hrs 15 min on low. Starting with room temp meat….perfect !!!!! Wowzer. Frees up oven space……..Thanks.

    1. You can, but because it’s a leaner meat, you may want to cook it for less time. It won’t render down the same over the lengthy time.

  16. I made this tonight and it is still very much RAW in the middle. Had to put it back in the slow cooker and Im still waiting for it 🙁

    1. Janine, this is one recipe (since it needs to cook to such a specific temp) that a thermometer is called for in the recipe. Depending on how thick your cut of beef is you have to know by temperature when it is done. The timing is a guideline on this one and the steps are for the method. I wouldn’t guess/eyeball for something this specific. Sorry for any confusion.

  17. The only thing I added was I lined the crockpot with sliced onions. I seared the beef and added what little juices to the crockpot with the roast. Cooked on low for 90 minutes and checked the temperature. Added more cooking time in 20 minute intervals until perfect!

    The juices make a wonderful gravy!

  18. I’m doing a 2.5 lb roast, what is your recommended cooking time on that weight for medium rare to medium center?

    1. I would check it after an hour. You are looking for a temperature rather than a time and slow cookers can run hot so look for 135 (medium rare) or 140 (medium)

  19. Hi. We do not have a slow cooker. We have had “pink meat” at a restaurant and it was delicious.Can pink meat be created using a normal electric cooker.Please say it can and how do you do it.

    Kind Regards

    Brian

    1. It depends on how much smaller the roast is. What you are looking for is an internal temperature of 135 (medium rare) to 140 (medium). Enjoy!

  20. Made this today and it was very good.Will make it again and try some of your other recipes.Thank you.

  21. Hi! I’ve made this twice now and each time it has been the most perfect beef I’ve ever cooked! Thank you. 🙂
    Can lamb be cooked the same way and still be medium rare and sliceable? Fingers crossed you see this before tomorrow!

    1. Yes, I just haven’t tested timing yet. I would recommend sticking with around the same cut or thickness and start with that timing for cook time. Hope this helps! So sorry I’m seeing this much later though.

  22. I have just taken a frozen beef joint from the freezer and as soon as it thaws I will try this recipe for our guests tomorrow.

  23. This recipe looks amazing. I generally buy CAB rump roasts. Is that cut suitable for this recipe? Some comments said their roast was tough. Not sure what cut of meat they used.