Sweet and Savory Sweet Potato Casserole — an easy, playful twist on the classic sweet potato casserole that uses potato chips in the topping for a delightful salty-sweet contrast. Perfect for Thanksgiving, Christmas, or any holiday table.
Unique Thanksgiving Side Dish
This is not your ordinary sweet potato casserole. It takes the familiar creamy sweet potato base and tops it with big buttery brown-sugar crumbles mixed with crushed sea salt potato chips for a crunchy, salty finish. The chips balance the sweetness and add an unexpected, irresistible texture.
The filling is smooth, rich, and comforting, while the topping provides large, crumbly pockets of brown sugar and butter along with crisp potato chip pieces. It’s a great option for anyone who prefers a salty-and-sweet flavor profile instead of a marshmallow topping.
Ingredients
Filling:
- 4 pounds sweet potatoes, peeled, diced into 1-inch chunks, boiled and drained
- 2 large eggs
- 1/4 cup unsalted butter, softened
- 1/2 cup milk
- 1/2 cup light brown sugar, packed
- 2 tablespoons granulated sugar
- 1 teaspoon vanilla extract
- 1/2 teaspoon salt, or to taste
- 1/4 teaspoon ground nutmeg (optional)
- 1/4 teaspoon cinnamon (optional)
Topping:
- 5 tablespoons unsalted butter, melted
- 2/3 cup light brown sugar, packed
- 1/2 cup all-purpose flour
- About 4.25 ounces sea salt kettle-style potato chips, lightly crushed
How to Make It
1. Preheat the oven to 350°F. Spray a 3-quart baking dish or a 9×13-inch pan with cooking spray and set aside.
2. Place the peeled and diced sweet potatoes in a large stockpot, cover with water, and bring to a boil. Cook until fork-tender, drain thoroughly, and transfer to a large bowl.
3. Add the eggs, softened butter, milk, brown sugar, granulated sugar, vanilla, salt, and the optional spices to the sweet potatoes. Beat with a handheld mixer on medium-high until smooth and well combined.
4. Spread the sweet potato mixture into the prepared baking dish and smooth the top.
5. For the topping: in a microwave-safe bowl, melt the butter. Stir in the brown sugar, flour, and a pinch of salt, tossing with a fork until large crumbles form.
6. Lightly crush the potato chips into small, recognizable pieces—use a few brief pulses in a food processor or place chips in a sealed bag and gently crush with a rolling pin. You want texture, not dust.
7. Toss the crushed chips into the crumble mixture, then evenly sprinkle the topping over the sweet potato filling.
8. Bake for about 40 minutes, or until the topping is lightly golden and set. If baking straight from the refrigerator (when made ahead), plan on about 50 minutes.
9. Serve hot.
Make-Ahead and Freezing Tips
This casserole is very make-ahead friendly. You can prepare the sweet potato filling, spread it in the baking dish, cover and refrigerate overnight. Prepare the topping just before baking and then bake as directed.
You can also bake the casserole first and freeze the finished baked dish (without the chip topping) for up to three months. Do not freeze the assembled casserole with the potato chip topping, since the chips will lose their crispness. When reheating from frozen, bake in a metal pan in a preheated oven; avoid transferring a cold glass dish directly to a hot oven.
What to Serve It With
This nut-free sweet potato casserole pairs well with classic holiday mains and sides: roasted turkey, glazed ham, dinner rolls, gravy, and roasted vegetables. It offers a complementary sweet-savory element to any festive spread.
Recipe (Serves 12)
Filling
- 4 pounds raw sweet potatoes, peeled, diced into 1-inch chunks, boiled and drained
- 2 large eggs
- 1/4 cup unsalted butter, softened
- 1/2 cup milk
- 1/2 cup light brown sugar, packed
- 2 tablespoons granulated sugar
- 1 teaspoon vanilla extract
- 1/2 teaspoon salt, or to taste
- 1/4 teaspoon ground nutmeg (optional)
- 1/4 teaspoon cinnamon (optional)
Topping
- 5 tablespoons unsalted butter, melted
- 2/3 cup light brown sugar, packed
- 1/2 cup all-purpose flour
- About 4.25 ounces sea salt kettle-style potato chips, lightly crushed
Instructions
- Preheat oven to 350°F. Spray a 3-quart baking dish or 9×13-inch pan with cooking spray.
- Boil sweet potatoes until fork-tender, drain well, and transfer to a large bowl.
- Add eggs, butter, milk, brown sugar, granulated sugar, vanilla, salt, nutmeg and cinnamon (if using). Beat until smooth.
- Spread the sweet potato mixture in the prepared dish.
- Make the topping: melt butter, stir in brown sugar and flour until large crumbles form. Lightly crush the chips and fold into the crumble.
- Evenly sprinkle the topping over the filling and bake about 40 minutes, until lightly golden and set (about 50 minutes if baking from chilled).
- Serve immediately.
Notes
Bake time: Ovens and bakeware vary. Start checking at 30 minutes and bake until the top is set and lightly golden.
Storage: Store leftovers airtight in the refrigerator for up to one week.
More Easy Thanksgiving Potato Recipes
Try variations and other favorites such as Sweet Potato Casserole with Butter Pecan Crumble Topping, Honey-Roasted Sweet Potatoes with Honey-Cinnamon Dip, Three Cheese Scalloped Potatoes, The BEST Mashed Potatoes, Loaded Twice Baked Potato Casserole, Crispy Parmesan Ranch Potatoes, and Parmesan and Herb Roasted Potatoes for more inspiration.
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