Peanut Butter Trail Mix Bars

Peanut Butter Trail Mix Bars are the perfect way to use up extra trail mix ingredients, like pretzels, M&Ms, and raisins, in a fun dessert to share.

If you’ve tried our Rice Krispies Trail Mix Bars, this version puts a rich, creamy peanut butter twist on the recipe. Bar Recipes like these are perfect for a bake sale, party, or sweet after-school snack. 

Peanut Butter Trail Mix Bars sliced

Easy Trail Mix Peanut Butter Bars are the perfect treat for the Summer or to pack in school lunches. Similar to classic Rice Krispies Treats, the base is made with a marshmallow and cereal mixture. But, instead of Rice Krispies, this version is made with Chex cereal and has peanut butter along with a variety of other add-ins. 

The peanut butter, pretzels, and peanuts add a nice saltiness to the dessert. Other mix-ins like M&Ms and raisins add more sweetness. It’s the perfect combination of sweet and salty with a variety of interesting tastes and textures mixed in.

The sweet marshmallow treat is always a hit with kids. If you want to add some other healthy mix-ins like nuts and dried fruit, these bars are a great way to get picky eaters enjoying them! 

Peanut Butter Trail Mix Bars collage

This recipe is perfect for an on-the-go snack. They’re great to pack in a lunch or enjoy throughout the day as a sweet treat to keep you going. The peanuts add a good dose of protein to the recipe, so you could even take them on a hike just like you would trail mix. Putting the trail mix in a bar form makes it easier to eat without having to pick out pieces from a bag. Just make sure to let the bars cool completely before you cut them, otherwise, you’ll have a gooey mess on your hands. 



  • Prep time: Spray a 9×13 pan with nonstick spray. This is an important step in order for the bars to come out of the pan easily once they’re done. 
  • Peanut butter mixture: Add butter, peanut butter, and mini marshmallows to a saucepan over medium heat. Mix the marshmallows in with the butter until well dissolved. Then take the pan off the heat. 
  • Cereal mixture: Add Chex cereal and pretzels to a large bowl. Pour the peanut butter and marshmallow mixture over the top. Use a wooden spoon to mix the ingredients together until the peanut butter is coating the cereal and pretzels.  
  • Mix-ins: Let the Chex mixture cool for 1-2 minutes before adding the mix-ins. Add the M&Ms candies, raisins, and peanuts to the mixing bowl and fold them in until they’re well-distributed. 
  • Set: Use your mixing spoon to transfer the ingredients into the prepared baking pan. Then, use your hands to press down gently until it’s in an even layer. Allow the Trail Mix Peanut Butter Bars to cool completely before slicing them into squares and serving. 
Peanut Butter Trail Mix Bars sliced


  • Chocolate chips: Try adding some chocolate chips into the mixture along with the other add-ins. You can use regular or mini chocolate chips. There are also different kinds of chocolate you can mix in like white chocolate chips, milk chocolate chips, or dark chocolate chips. 
  • Maple syrup: For some extra sweetness, try mixing ½ cup maple syrup or honey in with the peanut butter mixture. 
  • Granola: To make this recipe more similar to a granola bar, try mixing in different kinds of nuts and seeds. For the trail mix granola mixture add in Sliced almonds and cashews. Pumpkin seeds and sunflower seeds will also make a great addition. You can also mix in chunks of premade granola.  
  • Dried fruit: You can add other kinds of dried fruit along with the raisins like dried cranberries and cherries.
Peanut Butter Trail Mix Bars stacked



  • Serve: Make sure to let the Trail Mix Peanut Butter Bars chill completely before you eat them. The bars won’t set until they’ve completely cooled down. 
  • Store: You can keep the Trail Mix Bars in an airtight container at room temperature for up to 4 days. Another option is keeping them in the fridge for up to a week. The bars will be hard to bite into when they’re chilled, so let them sit at room temperature for a few minutes before serving. 
  • Freeze: You can also freeze them for up to 6 months. Cut the bars into squares, and put them into a freezer bag with the layers separated by parchment paper so they don’t stick together. 

Pin this recipe now to remember it later

Pin Recipe

Peanut Butter Trail Mix Bars

Peanut Butter Trail Mix Bars are the perfect way to use up extra trail mix ingredients, like pretzels, M&Ms, and raisins, in a fun dessert to share.
Yield 16 Servings
Prep Time 5 minutes
Cook Time 0 minutes
Total Time 20 minutes
Course Dessert
Cuisine American
Author Sabrina Snyder


  • 1/2 cup unsalted butter
  • 1/3 cup creamy peanut butter
  • 5 cups miniature marshmallows
  • 2 cups pretzels , broken
  • 2 cups Corn Chex
  • 1 cup M&M candies
  • 1/4 cup raisins
  • 1/4 cup salted peanuts , roughly chopped


  • Spray a 9×13 pan with vegetable oil spray.
  • To a medium saucepan add the butter, peanut butter, and marshmallows on medium heat.
  • Mix well until just dissolved, then remove from heat.
  • In a large bowl mix pretzels and Chex cereal with the peanut butter mixture.
  • Once slightly cooled (in 1-2 minutes), mix in M&Ms candies, raisins, and peanuts.
  • Gently press mixture into baking pan.
  • Cool completely before slicing.


Calories: 270kcal | Carbohydrates: 36g | Protein: 4g | Fat: 13g | Saturated Fat: 6g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 3g | Trans Fat: 1g | Cholesterol: 17mg | Sodium: 213mg | Potassium: 95mg | Fiber: 2g | Sugar: 18g | Vitamin A: 331IU | Vitamin C: 1mg | Calcium: 37mg | Iron: 2mg
Keyword: Peanut Butter Trail Mix Bars
Peanut Butter Trail Mix Bars collage

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 upcoming cookbook: Dinner, then Dessert – Satisfying Meals Using Only 3, 5 or 7 Ingredients which is being 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. If you enjoyed the recipe and would like to publish it on your own site, please re-write it in your own words, and link back to my site and recipe page. Read my disclosure and copyright policy. This post may contain affiliate links.


Leave a comment & rating

Your email address will not be published. Required fields are marked *

Recipe Rating

This site uses Akismet to reduce spam. Learn how your comment data is processed.