Welcome to the ultimate sweet potato soufflé recipe that will transform your holiday table. Forget dense, heavy sweet potato casseroles; this dish is incredibly light, airy, and packed with warm, comforting flavor. We’ve crafted a foolproof method that guarantees a perfectly puffed, golden-brown top and a creamy, cloud-like interior every single time. Whether you’re planning a Thanksgiving feast or a special family dinner, this soufflé is destined to become a new tradition.
What Makes This the Best Sweet Potato Soufflé Recipe?
This isn’t just another sweet potato dish. Our recipe focuses on the technique that makes a soufflé truly special: incorporating whipped egg whites. This crucial step creates a light, airy texture that sets it apart from heavier casseroles.
We also balance the sweetness perfectly, allowing the natural flavor of the sweet potatoes to shine. Topped with a crunchy brown sugar and pecan crumble, it’s a symphony of textures and tastes that will have everyone asking for the recipe.
Soufflé vs. Casserole: What’s the Difference?
Many recipes use the terms “soufflé” and “casserole” interchangeably, but there’s a key difference. A traditional soufflé gets its signature lift and airy texture from separately beaten egg whites that are carefully folded into the base. A casserole, on the other hand, typically mixes whole eggs directly into the batter, resulting in a denser, more custard-like consistency. This recipe honors the soufflé technique for a truly elegant result.
The Essential Ingredients
This recipe uses simple, wholesome ingredients to create a show-stopping side dish. The magic is in the method, not in a complicated shopping list. Here’s what you’ll need.
For the Soufflé Base:
- Sweet Potatoes: The star of the show. Freshly baked sweet potatoes provide the best flavor and texture.
- Unsalted Butter: Adds richness and a velvety mouthfeel.
- Granulated Sugar: For a clean, balanced sweetness.
- Eggs: Separated into yolks and whites, they are the key to the soufflé’s structure and lift.
- Heavy Cream: Lends extra creaminess and moisture to the base.
- Vanilla Extract: Enhances all the warm, cozy flavors.
- Salt: A pinch is crucial for balancing the sweetness.
For the Pecan Crumble Topping:
- All-Purpose Flour: Provides the structure for our crumbly topping.
- Brown Sugar: Adds a deep, molasses-like sweetness that pairs beautifully with pecans.
- Chopped Pecans: For that essential nutty crunch.
- Cold Unsalted Butter: Cut into cubes, it creates a crisp, streusel-like texture.
- Cinnamon: A dash of warm spice to complement the sweet potato.

Step-by-Step Instructions
Follow these steps carefully to achieve a perfectly light and fluffy sweet potato soufflé. The key is to be gentle when folding in the egg whites to preserve all the air you’ve whipped into them.
Step 1: Prepare the Sweet Potatoes
Preheat your oven to 400°F (200°C). Pierce the sweet potatoes several times with a fork and place them on a baking sheet. Bake for 45-60 minutes, or until they are very tender and easily pierced with a knife. Let them cool slightly, then slice them open and scoop the flesh into a large bowl, discarding the skins.
Step 2: Create the Soufflé Base
Reduce the oven temperature to 350°F (175°C). Add the melted butter, granulated sugar, egg yolks, heavy cream, vanilla extract, and salt to the bowl with the sweet potato flesh. Use an electric mixer or a stand mixer to beat the mixture until it is completely smooth and creamy. Set aside.
Step 3: Whip and Fold the Egg Whites
In a separate, clean bowl, use an electric mixer with the whisk attachment to beat the egg whites on high speed until stiff peaks form. This means when you lift the beaters, the peaks hold their shape. Gently fold one-third of the whipped egg whites into the sweet potato mixture to lighten it. Then, add the remaining egg whites and fold carefully until just combined. Do not overmix, as this will deflate the egg whites.
Step 4: Make the Pecan Topping
In a small bowl, combine the all-purpose flour, brown sugar, chopped pecans, and cinnamon. Add the cold, cubed butter and use your fingertips or a pastry cutter to work the butter into the mixture until it resembles coarse crumbs.
Step 5: Assemble and Bake
Pour the sweet potato soufflé mixture into a greased 2-quart baking dish and smooth the top. Sprinkle the pecan crumble topping evenly over the surface. Bake for 30-35 minutes, or until the soufflé is puffed and the topping is golden brown. Let it rest for a few minutes before serving warm.

Pro Tips for a Perfect Soufflé
Master this easy sweet potato soufflé recipe with a few expert tips from our kitchen.
- Use Fresh Sweet Potatoes: While canned purée is convenient, baking fresh sweet potatoes yields a deeper, more complex flavor and a better texture.
- Ensure Egg Whites are at Room Temperature: Room temperature egg whites whip up to a greater volume, giving your soufflé maximum lift.
- Fold, Don’t Stir: When incorporating the egg whites, use a gentle “folding” motion with a spatula. Cut down through the middle of the batter, scrape along the bottom, and bring the batter up and over the top. This preserves the air bubbles.
- Serve Immediately: A soufflé is at its best right out of the oven, as it will naturally start to settle as it cools.
Delicious Variations to Try
While this classic recipe is a showstopper, feel free to customize it! Add a pinch of nutmeg or allspice to the base for extra warmth. For a nut-free version, you can substitute the pecans with rolled oats and a little extra butter in the topping for a delicious crumble.
If you’re looking for other dessert ideas, this delightful lemon raspberry bar recipe is always a crowd-pleaser.
Make-Ahead and Storage Instructions
To save time on a busy cooking day, you can prepare the soufflé base and the topping separately up to 24 hours in advance. Store them in airtight containers in the refrigerator. When you’re ready to bake, bring the base to room temperature, whip and fold in the egg whites, add the topping, and bake as directed. Leftover soufflé can be covered and refrigerated for up to 3 days. Reheat in a 300°F oven until warmed through.
Frequently Asked Questions about this Sweet Potato Soufflé Recipe
Yes. You can prepare the sweet potato base and the pecan topping up to 24 hours in advance. Store them in separate airtight containers in the refrigerator. When ready to bake, let the base come to room temperature before whipping and folding in the fresh egg whites, then top and bake as directed.
The main difference is texture. A true soufflé, like this recipe, involves folding whipped egg whites into the base, which makes it light and airy. A casserole typically uses whole eggs mixed directly in, resulting in a denser, more custard-like dish.
Soufflés naturally fall slightly as they cool. To minimize this, ensure your egg whites are beaten to stiff peaks and, most importantly, fold them into the base very gently to avoid deflating the air bubbles. Also, avoid opening the oven door while baking, as sudden temperature changes can cause it to collapse.
For the best flavor and texture, we strongly recommend using fresh sweet potatoes that you bake yourself. This provides a much deeper, more authentic sweet potato flavor than canned purée.
We don’t recommend freezing the finished soufflé, as the texture can become watery upon thawing. However, you can freeze the cooked, mashed sweet potato base for up to 3 months. Thaw it in the refrigerator before proceeding with the recipe.
More Holiday Recipes You’ll Love
We hope this fluffy sweet potato soufflé becomes a cherished part of your holiday meals. A great meal is all about balance, and this dish pairs wonderfully with savory classics like our family-favorite homemade stuffing. To round out your celebration, don’t forget a stunning dessert like our award-winning pumpkin pie. For a fresh contrast, a bright pomegranate winter salad is the perfect choice.
If you loved this recipe, share it with your friends and family! We’d love for you to save it to your favorite board on Pinterest. Happy cooking!

Sweet Potato Soufflé Recipe

Sweet Potato Soufflé Recipe (That's Actually Light & Fluffy!)
Ingredients
Equipment
Method
- Preheat oven to 400°F (200°C). Pierce sweet potatoes with a fork, place on a baking sheet, and bake for 45-60 minutes until very tender. Let cool slightly.
- Scoop the sweet potato flesh into a large bowl, discarding the skins. Reduce oven temperature to 350°F (175°C).
- Add melted butter, granulated sugar, egg yolks, heavy cream, vanilla, and salt to the sweet potatoes. Beat with an electric mixer until completely smooth.
- In a separate clean bowl, beat the egg whites on high speed until stiff peaks form.
- Gently fold one-third of the egg whites into the sweet potato mixture to lighten it. Then, carefully fold in the remaining whites until just combined, being careful not to overmix.
- In another bowl, prepare the topping. Combine flour, brown sugar, pecans, and cinnamon. Cut in the cold butter with your fingertips until the mixture resembles coarse crumbs.
- Pour the soufflé mixture into a greased 2-quart baking dish. Sprinkle the pecan topping evenly over the surface.
- Bake for 30-35 minutes, until puffed and golden brown. Let rest for a few minutes before serving.
Nutrition
Notes
Storage Tip: Leftovers can be refrigerated in an airtight container for up to 3 days.












