Fluffy sweet potato souffle topped with a crunchy pecan streusel is a holiday must-have. This comforting side dish brings warm fall flavors—maple, cinnamon, and brown sugar—together with velvety sweet potatoes. It uses simple ingredients, can be made ahead to ease Thanksgiving day stress, and one casserole feeds a crowd.
Every holiday table benefits from a sweet potato dish. This souffle is different from candied yams or pecan-streusel sweet potatoes in texture—it’s lighter and slightly soufflé-like beneath the crisp topping. Serve it alongside roasted turkey and other favorite sides for a memorable meal.
🍠 Ingredients
- 3.5 lb. sweet potatoes — fresh is best; garnet yams work well.
- ½ teaspoon salt
- ½ cup packed light brown sugar
- ¼ cup maple syrup
- ½ teaspoon ground cinnamon
- ½ cup heavy cream (or substitute half-and-half or whole milk)
- 6 tablespoons unsalted butter
- 2 eggs — room temperature for better lift
- 1 teaspoon vanilla extract
Pecan Streusel Topping:
- 1 cup packed light brown sugar
- ½ cup all-purpose flour
- ⅛ teaspoon salt
- ½ teaspoon ground cinnamon
- 4 tablespoons unsalted butter — keep it cold
- ¾ cup chopped pecans (or swap walnuts)
Optional garnish: a light dusting of powdered sugar or a few extra toasted pecans for presentation.
Substitutions and Variations
- Marshmallows: If you prefer a classic sweet finish, add a thin layer of mini marshmallows over the streusel during the last few minutes of baking.
- Canned sweet potatoes: Use in a pinch, but drain well—fresh yields the best texture and flavor.
- Baking dish sizes: This recipe fits a 2-quart or 8×8-inch dish; double the recipe for a 9×13-inch pan.
- How to cook the potatoes: Roast whole on a sheet at 450°F for 35–40 minutes, boil peeled cubes until tender, or microwave whole potatoes (prick skins and microwave ~15 minutes, turning once).
🔪 Instructions
PREP: Preheat the oven to 350°F (175°C).
- Cook the sweet potatoes: Pierce skins with a fork. Microwave for about 15 minutes (turn once), roast at 450°F for ~45 minutes, or peel, cube, and boil until tender. Allow potatoes to cool until they’re easy to handle.
- Prepare the flesh: Slice roasted or microwaved potatoes in half and scoop the flesh into a large bowl; discard the skins.
- Make the filling: Add salt, brown sugar, maple syrup, cinnamon, heavy cream, butter, eggs, and vanilla to the sweet potato flesh. Mash by hand or puree in a blender or food processor until you reach your desired texture. Blending yields a silkier, lighter base; mashing leaves more texture.
- Assemble: Spread the sweet potato mixture evenly into a greased 2-quart (8×8) baking dish.
- Make the streusel: In a bowl, whisk brown sugar, flour, cinnamon, salt, and pecans. Cut cold butter into the mixture with a pastry cutter or your fingers until it forms a sandy, crumbly streusel.
- Top and bake: Sprinkle the streusel over the sweet potato layer. Bake 40–45 minutes until the topping is golden and the souffle puffs slightly. If the center is still soft while edges are puffed, bake 5–10 minutes longer. Cover loosely with foil if topping begins to over-brown.
- SERVE: Let cool a few minutes, then scoop and serve alongside turkey and other holiday sides.
Pro Tip: Cool cooked sweet potatoes before mixing with eggs to avoid scrambling. Room-temperature eggs incorporate more air, helping the souffle rise.
Sweet Potato Souffle Recipe Tips
- For the lightest texture, blend the filling with an electric mixer or food processor to incorporate air.
- Hand-mashing is fine if you prefer a rustic texture; it’s a matter of personal preference.
- Make the filling ahead and refrigerate; add streusel and bake on the day you serve for fresher topping.
Fun Fact
Potatoes—both sweet and regular—are holiday staples in many American homes. A sweet potato casserole like this one is a classic Thanksgiving side that pairs well with roasted turkey and savory sides.
Recipe FAQs
True yams and sweet potatoes come from different plant families. Sweet potatoes typically have orange flesh and a naturally sweet flavor. Many grocery stores label orange-fleshed sweet potatoes as “yams,” so what you buy is often a sweet potato.
Store leftovers covered in the refrigerator for up to 3 days. Reheat gently in the oven to keep the streusel crisp. Freezing is not recommended for best texture.
Nutrition (approx.)
Per serving, this casserole is rich and satisfying. Expect a higher-calorie, higher-fat side due to butter, heavy cream, and pecans—balanced by the natural fiber and vitamin A in sweet potatoes. If you need precise nutrition numbers, calculate based on the exact ingredients you use.
If you make this Sweet Potato Soufflé, enjoy it with your favorite holiday sides and consider leaving feedback to help others find this recipe.