Sweet Potato Soufflé

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Sweet Potato Soufflé is soft and buttery Thanksgiving side dish with a sweet crunchy walnut and brown sugar streusel topping. Ready in just 40 minutes!

This excellent sweet potato casserole makes a perfect Thanksgiving side dish and can even double as a not so sweet dessert. Similar to the classic side dish Candied Sweet Potatoes with Marshmallows.

Sweet Potato Soufflé with spoonful scooped out of baking dish

SWEET POTATO SOUFFLÉ

This Sweet Potato Soufflé is the perfect addition to your Thanksgiving table. It’s creamy and buttery with a crunchy topping. The naturally sweet flavor of sweet potatoes pairs perfectly with vanilla, sugar, and the brown sugar streusel topping. This fun take on sweet potato casserole is the perfect compliment to a classic turkey dinner.

Sweet Potato Souffle is one of the most family-friendly side dishes you can serve this Thanksgiving. The dessert-like potatoes are going to be a huge hit with kids and adults alike. Plus, you don’t just have to save it for Thanksgiving. Sweet Potato Soufflé is great for Christmas, Easter, or any other big dinner. Whether you’re serving ti with Glazed Ham or a Roast Turkey, this dish will be just as delicious.

Sweet Potato Soufflé before baking

Making this dish is also wonderfully easy! It’s a simple matter of combining the sweet potato mixture, then mixing together the walnut streusel topping. Bake the two parts of the soufflé together for 30 minutes, and you’ll have the perfect dish. It’s quick, simple, and comes out wonderfully creamy every time. 

If you want to make the crumble more firm so it doesn’t melt together at all, add a bit more flour (2 tablespoons) and refrigerate it for an hour before crumbling it in larger chunks over the sweet potato filling.

MORE SWEET POTATO RECIPES

TIPS FOR MAKING CANDIED SWEET POTATOES

  • How to mash sweet potatoes: Before you mash the sweet potatoes cut them into small pieces that are easier to break down. You can put the sweet potatoes in a blender to puree them more smoothly. You can also do it by hand with a potato masher or hand mixer. It’s up to you how smooth you want the mixture to be. If you’d prefer some more texture leave some chunks of sweet potato in the soufflé.
  • You can also decide if you want to leave the peel on the potato or not. Sweet potato peels have a lot of nutrients, so if you’d like to keep them in your casserole you don’t have to peel the potatoes.
  • Once the potatoes are mashed combine them with 1/2 cup white sugar, 1/3 cup unsalted butter, 2 large eggs, 1 teaspoon vanilla extract, and 1/2 cup whole milk. This will make the sweet and soft soufflé mixture.
  • Spread the soufflé mixture in the baking dish, then sprinkle the crunchy streusel topping over the top.
  • Bake for 30-35 minutes in a 350 degree oven. You’ll know the casserole is done when the topping is crisp and golden brown.

Ingredients for Sweet Potato Soufflé in metal bowl

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VARIATIONS ON SWEET POTATO SOUFFLÉ

  • Spices: For some extra flavor try adding a teaspoon or so of cinnamon, nutmeg, ginger, or allspice. Whatever classic spices you use in your favorite holiday desserts could be great in this soufflé.
  • Pecans: You can use pecans in the topping instead of walnuts. To make the pecan streusel just combine all-purpose flour, brown sugar, butter, and a cup of chopped pecans. You could also do 1/2 cup of pecans and 1/2 cup of walnuts.
  • Marshmallow topping: If you want to make this soufflé more similar to a marshmallow sweet potato casserole, you can add mini marshmallows to the top instead of the streusel topping. Cook the soufflé without any toppings, then add the marshmallows and broil for 30 seconds until the marshmallows are golden brown on top.

Sweet Potato Soufflé after baking in oval baking dish

Can you make Sweet Potato Soufflé the night before?

This Sweet Potato Casserole recipe is a great make-ahead side dish. Prepare the Sweet Potato Soufflé recipe as usual the day before you plan to serve it. Rather than baking it:

  • Make the filling of the sweet potato soufflé the night before and place into the baking dish. Cover well with a plastic film.
  • Make the crumble topping just before baking and bake fresh before serving for best results or your crumble may soften.

THANKSGIVING RECIPES

HOW TO STORE SWEET POTATO SOUFFLÉ

  • Serve: Don’t leave your Sweet Potato Casserole at room temperature for more than 2 hours.
  • Store: Once it’s cooled to room temperature, cover the Sweet Potato Soufflé in plastic wrap or store it in an airtight container. It will keep well in the fridge for 4 days.
  • Freeze: You can freeze Sweet Potato Casserole for up to 6 months. Let it defrost in the fridge overnight before reheating it in the oven.

Spoon of Sweet Potato Soufflé over baking dish

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Sweet Potato Soufflé

  • Yield: 10 Servings
  • Prep Time: 10 minutes
  • Cook Time: 30 minutes
  • Total Time: 40 minutes
  • Course: Side Dish
  • Cuisine: American
  • Author: Sabrina Snyder

Sweet Potato Soufflé is soft and buttery Thanksgiving side dish with a sweet crunchy walnut and brown sugar streusel topping. Ready in just 40 minutes!

Ingredients

Sweet Potato Mixture:

  • 3 cups mashed sweet potatoes
  • 1/2 cup white sugar
  • 1/3 cup unsalted butter , softened
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1/2 cup whole milk

Streusel topping:

  • 1/2 cup flour
  • 1 cup packed brown sugar
  • 1 cup walnuts , chopped
  • 1/3 cup unsalted butter , melted

Instructions

Note: click on times in the instructions to start a kitchen timer while cooking.

  1. Preheat oven to 350 degrees and spray an 2-quart baking dish with vegetable oil spray.
  2. In a large bowl whisk together sweet potatoes, sugar, butter, eggs, vanilla extract and whole milk.
  3. Spread mixture in baking dish.
  4. In a medium bowl mash together flour, brown sugar, walnuts and butter and sprinkle over the sweet potatoes.
  5. Bake for 30-35 minutes until topping is browned and crisp.

Nutrition Information

Yield: 10 Servings, Amount per serving: 353 calories, Calories: 353g, Carbohydrates: 39g, Protein: 4g, Fat: 21g, Saturated Fat: 9g, Cholesterol: 71mg, Sodium: 28mg, Potassium: 117mg, Fiber: 1g, Sugar: 32g, Vitamin A: 452g, Vitamin C: 1g, Calcium: 53g, Iron: 1g

All images and text © for Dinner, then Dessert.

Keyword: Sweet Potato Souffle
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