Sweet Potato Souffle With Pecans

Category: Traditional Thanksgiving Recipes & Holiday Favorites

Sweet potato souffle combines velvety roasted sweet potatoes with a light custard base and a buttery, pecan-laden streusel topping. This dish is approachable for home cooks, requires classic pantry ingredients, and offers a showstopping, fluffy centerpiece for holiday spreads or cozy autumn dinners. Enjoy it fresh and warm, straight from the oven, with its inviting aroma and satisfying, sweet crunch.

Sarah Crisp
Recipe By Sarah Crisp Sarah Crisp
Last updated on Tue, 18 Nov 2025 22:22:10 GMT
A spoon is in a bowl of sweet potato souffle. Pin
A spoon is in a bowl of sweet potato souffle. | cookrisp.com

This homemade sweet potato souffle recipe has completely changed the way I look at holiday side dishes, providing that nostalgic comfort in just 30 minutes of prep and 30 minutes of baking time. Whether you are planning Thanksgiving, Christmas, or a simple weeknight meal, this sweet potato souffle delivers creamy, fluffy warmth crowned with a pecan streusel for both flavor and texture. For anyone craving a traditional sweet potato casserole or a lighter souffle, this homemade recipe fits the bill and comes together in under an hour.

I first made this sweet potato souffle with butternut squash one Thanksgiving when oven space was tight and I wanted a reliable side that would wow family and guests. Removing the casserole from the oven, I was struck by the pillowy, golden topping and how the aroma of roasted sweet potatoes and toasted pecans filled the kitchen. Since that day, this dessert-like holiday souffle earns requests for both holiday gatherings and simple Sunday dinners, rewarding anyone who craves a homemade sweet potato side with something dreamy and special.

Gather Your Ingredients

  • Sweet potatoes (key for sweet potato souffle): Provide a silky, creamy base and classic flavor. Select firm, unblemished sweet potatoes for better texture and natural sweetness; you can substitute half with butternut squash for a lighter casserole.
  • Unsalted butter: Adds richness and that signature holiday flavor. Let it soften at room temperature for smoother blending; plant-based butter substitutes well for dairy free versions.
  • Eggs: Essential for helping the souffle rise and set into a fluffy structure. Use large eggs for best results; flaxseed meal can replace eggs for vegan options.
  • Granulated sugar or cane sugar: Balances and sweetens the potatoes while enhancing their flavor. Use coconut sugar for a refined sugar free or lower glycemic topping as needed.
  • Whole milk (or almond milk): Ensures extra creaminess in the mixture. Almond milk is suitable for dairy free diets and works without curdling.
  • Vanilla extract: Adds depth and warmth to the souffle, complementing the nutty topping and sweet potatoes. Pure vanilla is ideal, but imitation can be used in a pinch.
  • Kosher salt: Heightens the natural sweetness and enhances every component. Fine sea salt may be substituted, but use less due to saltiness difference.
  • Chopped pecans: Create the crunchy, aromatic streusel. Toast lightly for extra flavor or swap for walnuts as a nut alternative.
  • Brown sugar or coconut sugar: Adds caramel-like richness to the pecan topping. Coconut sugar gives a healthier twist for refined sugar free needs.
  • All purpose flour (or oat flour): Binds the crumble topping for proper structure and crunch. Oat or almond flour is a perfect gluten free substitute.
  • Butter for greasing: Prevents sticking and makes serving easier. Nonstick spray or coconut oil also work if you need dairy free or vegan.

How to Make Homemade Sweet Potato Souffle

Bake the Sweet Potatoes Until Tender:
Preheat your oven to 350 degrees F. Use a fork to prick the sweet potato skins, then roast them on a parchment lined sheet for about one hour and fifteen minutes until fully soft. Proper roasting concentrates the earthy sweetness, giving the souffle unmatched flavor depth.
Cool the Potatoes for Easy Handling:
Let roasted potatoes rest for 20 minutes so the peels slide off easily and the interior remains intact. This step makes handling safer and keeps every bit of creamy flesh for the souffle base.
Make the Souffle Base:
Grease a medium casserole dish with one tablespoon of butter (glass, 8 by 11 inch or 9 by 13 inch bestselling for presentation). Peel and transfer the potato flesh to a stand mixer bowl and add butter, eggs, sugar, milk, vanilla, and salt. Mix on medium for 2 minutes until velvety, scraping the bowl as needed to maintain consistent texture. A hand mixer or sturdy whisk is effective as well.
Spread and Smooth the Mixture:
Spread the whipped sweet potato base evenly in the prepared dish and use a spatula to smooth the top. This ensures even baking and a beautiful golden surface for the pecan streusel to adhere.
Make the Pecan Streusel Topping:
In a separate bowl, combine pecans, brown sugar, all purpose flour, and softened butter. Work them together using a fork or your fingertips until crumbly and uniformly mixed. Scatter the topping evenly over the souffle base so every bite features a sweet, crunchy layer.
Bake Until Hot and Bubbling:
Maintain the oven at 350 degrees F and bake for 40 minutes, checking at minute 35 if your oven tends to run hot. Look for a bubbling edge and golden brown topping. If pecans start darkening too much, tent loosely with foil. Perfect timing yields souffle beneath and crisp topping above.
Serve Warm and Enjoy:
Let the sweet potato souffle cool ten minutes for easier scooping. You will notice the kitchen filled with aromas of toasted nuts and sweet potatoes. Serve straight from the oven for the softest, fluffiest servings or allow to cool for firmer, sliceable portions.
A white bowl filled with a sweet potato dessert.
A white bowl filled with a sweet potato dessert. | cookrisp.com

I discovered years ago that toasting the pecans before adding them to the crumble brings a deep nutty aroma everyone looks forward to each year. My kids were so taken with the soufflé that one Thanksgiving, they requested it for breakfast the very next day. The creamy sweet potato base with the crisp topping is now a holiday tradition that always disappears fast.

Smart Swaps and Variations

Swap half the sweet potatoes for peeled butternut squash to lighten the casserole and introduce a gentle sweetness and yellow color. For a healthier topping, use coconut sugar or brown sugar and substitute oat or almond flour if gluten sensitivity is a concern. For vegan sweet potato soufflé, replace eggs with flaxseed meal, choose almond milk, and use plant based butter. In autumn, fold in diced apples, or toss in dried cranberries for winter flair and extra texture and color. Add cinnamon or nutmeg to the pecan topping for additional warmth during the colder months.

How to Store and Reheat Sweet Potato Souffle

Store leftover sweet potato souffle in an airtight container in the refrigerator for up to three days to maintain texture and moisture. For longer storage, freeze individual portions using freezer safe containers for up to three months, ensuring quick reheating for weeknight meals or future holiday gatherings. When ready to serve, let the souffle come to room temperature, then reheat in a 350 degree oven covered loosely with foil for about 20 minutes, or microwave individual portions for one to two minutes for creamy, fluffy texture.

What to Serve with Sweet Potato Souffle

Enjoy sweet potato souffle alongside classic Thanksgiving mains like roast turkey, glazed ham, or oven roasted chicken for a meal that feels both traditional and elevated. For a buffet or potluck, pair with a fresh green salad and a tart cranberry relish to provide contrast and brighten the plate. Make it the star of a vegetarian meal, complemented by fluffy quinoa or roasted Brussels sprouts, or turn it into a festive centerpiece by offering in individual ramekins for an elegant holiday presentation.

Nutritional Benefits

Sweet potato souffle delivers a nourishing dose of vitamin A, potassium, and dietary fiber, supporting healthy vision, immunity, and digestion. Naturally vegetarian and easy to adapt for gluten free or dairy free diets, this recipe avoids the heavy fats of traditional sweet potato pies. With about 430 calories and 15 grams of protein per serving, this souffle offers balanced macros and antioxidants from both orange sweet potatoes and pecans, making it a healthful addition to any holiday menu.

Recipe Success Tips

To prevent gumminess, always roast sweet potatoes with the skins on, then peel and blend after cooling. If the souffle mixture appears too runny, slightly reduce milk or extend baking time for a set texture. Using a glass baking dish promotes even browning and gives the casserole an inviting look for special occasions. If the pecan topping browns too rapidly, loosely tent with foil during the last ten minutes for a golden finish without burning.

A white bowl filled with a sweet potato dish.
A white bowl filled with a sweet potato dish. | cookrisp.com

This holiday sweet potato souffle has become my family's most requested side, delivering creamy comfort and festive appeal with every bite. Give this homemade recipe a try and enjoy the blend of simple tradition and celebratory flavor on your holiday table.

Common Questions About This Recipe

→ How do you achieve a fluffy texture in sweet potato souffle?

Ensure sweet potatoes are well-roasted and cooled before blending with eggs and milk. Mixing just until combined helps trap air, resulting in a lighter texture.

→ Can you prepare sweet potato souffle ahead of time?

Yes. Bake the sweet potatoes and assemble the casserole and topping separately, store in the fridge, and bake before serving for maximum freshness.

→ What is the purpose of the pecan streusel topping?

The pecan topping adds a sweet, crunchy contrast to the creamy sweet potato filling, providing both flavor and texture to the finished dish.

→ Is it possible to make this souffle dairy-free?

Yes, substitute plant-based butter and almond milk for a dairy-free variation without losing the dish's signature creaminess or flavor.

→ How should leftovers be stored?

Leftovers keep well in an airtight container in the refrigerator for up to three days. Warm before serving to restore the souffle's texture.

Sweet Potato Souffle Pecan Streusel

Bring a warm touch to your fall or Thanksgiving table with this sweet potato souffle featuring roasted sweet potatoes and a crisp, pecan-packed streusel. Light, fluffy, and sweet, it perfectly complements holiday roasts—definitely one to keep handy.

Prep Time
30 minutes
Time to Cook
40 minutes
Complete Time
70 minutes
Recipe By Sarah Crisp: Sarah Crisp

Recipe Type: Thanksgiving

Level of Difficulty: Moderate Difficulty

Cuisine Style: American

Makes: 4 Number of Servings (One medium casserole, serves four)

Dietary Categories: Suitable for Vegetarians

Ingredients You’ll Need

→ For the Sweet Potato Base

01 1/2 cup unsalted butter, room temperature (1 stick), plus 1 tablespoon for greasing
02 5 medium sweet potatoes (yielding 5 to 6 cups flesh)
03 2 large eggs, room temperature
04 1 cup granulated sugar or cane sugar
05 1 1/2 teaspoons pure vanilla extract
06 1/2 cup whole milk or unsweetened almond milk
07 1/8 teaspoon kosher salt

→ For the Pecan Streusel Topping

08 1 cup pecans, coarsely chopped
09 1 cup brown sugar or coconut sugar
10 1/2 cup all-purpose flour
11 1/4 cup unsalted butter, softened (1/2 stick)

How to Make It

Step 01

Preheat oven to 350°F. Poke sweet potatoes several times with a fork and arrange on a parchment or foil-lined baking sheet. Bake until a knife pierces easily, 60 to 75 minutes, turning after an hour and baking up to 15 minutes more as needed.

Step 02

Remove from oven and allow sweet potatoes to cool for 20 minutes. Keep oven on for later steps.

Step 03

Grease an 8x11-inch or 9x13-inch ovenproof casserole with 1 tablespoon butter. Set aside.

Step 04

Peel sweet potatoes and transfer flesh to a mixing bowl. Add the remaining 1/2 cup butter, eggs, granulated sugar, vanilla extract, milk, and kosher salt. Beat with a stand mixer or hand mixer until thoroughly combined.

Step 05

Spread the sweet potato mixture evenly into the prepared casserole dish.

Step 06

In a separate bowl, combine chopped pecans, brown sugar, flour, and 1/4 cup softened butter. Mix with a fork or fingertips until crumbly.

Step 07

Sprinkle streusel mixture evenly over the sweet potato base.

Step 08

Bake at 350°F for 40 minutes or until topping is golden brown and mixture is bubbling around the edges.

Step 09

Allow to cool slightly before serving warm.

Extra Suggestions

  1. Sweet potato base and topping can be assembled in advance and stored separately, refrigerated in airtight containers. Bake just before serving for optimal texture.
  2. Leftovers should be stored in an airtight container, refrigerated, and consumed within 3 days.

Things You'll Need

  • Stand mixer or hand mixer
  • 8x11-inch or 9x13-inch ovenproof casserole dish
  • Foil or parchment paper
  • Sheet pan

Allergen Information

Always read labels for allergens and consult your doctor if unsure.
  • Contains eggs, milk, pecans, and wheat (gluten).

Nutritional Breakdown (Per Serving)

This is for general info and isn't a replacement for professional advice.
  • Calories: 430
  • Fat Content: 18 grams
  • Carbohydrates: 40 grams
  • Protein Content: 15 grams