The Best Sweet Potato Casserole
This sweet potato casserole is sprinkled with a nutty crumb topping to create a pleasantly crunchy contrast to the creamy and soft mashed sweet potatoes down below. The filling gets an extra special pumpkin pie(ish) treatment with brown sugar and vanilla for a deep caramel flavor. (In fact, leftovers can be heated up and topped with a scoop of ice cream just like pie.) Want to make ahead for Thanksgiving or another special holiday? Not a problem. The casserole ingredients can be mixed and transferred to a baking dish. Cover and refrigerate until ready to bake but leave off the topping. Store it separately at room temperature in an air-right container and sprinkle it on right before baking.
Equipment
- 1 Large Pot For boiling sweet potatoes
- 1 Potato Masher Or a large fork for mashing
- 1 Large Mixing Bowl For combining filling ingredients
- 1 Whisk For smooth blending
- 1 2-Quart Baking Dish For baking the casserole
Ingredients
Main
- 1/2 stick 4 tablespoons unsalted butter, melted, plus more for buttering the baking dish
- 3 to 4 large sweet potatoes about 1 3/4 pounds, peeled and cubed
- 1/2 cup milk
- 1/4 cup brown sugar packed
- 1 teaspoon pure vanilla extract
- 1/2 teaspoon kosher salt
- 2 large eggs
- 1/2 cup all-purpose flour
- 1/2 cup brown sugar packed
- 1/2 stick 4 tablespoons unsalted butter, melted
- 1/4 teaspoon kosher salt
- 3/4 cup chopped pecans
Instructions
- For the sweet potatoes: Add 1 3/4 pounds peeled and cubed sweet potatoes to a large pot of salted water. Bring to a boil over high heat, then lower the heat to a simmer and cook until the potatoes are very tender, 15 to 20 minutes. Drain and cool. Mash the sweet potatoes.
- For the filling: Preheat the oven to 350 degrees F. Butter a 2-quart baking dish.
- Whisk together the butter, mashed sweet potatoes, milk, brown sugar, vanilla, salt and eggs in a large bowl. Transfer to the prepared baking dish.
- For the topping: Combine the flour, brown sugar, butter and salt in a medium bowl until moist and the mixture clumps together. Stir in the pecans. Sprinkle the mixture over the top of the sweet potatoes in an even layer. Bake until mostly set in the center and golden on top, 25 to 30 minutes. Serve hot.
Notes
For perfectly smooth sweet potatoes, consider using a food mill or ricer after boiling to eliminate any lumps. When preparing the topping, ensure the butter is melted but not hot, which helps achieve a cohesive, clumpy texture without over-softening the flour. To enhance the nutty flavor of the pecans, a quick toast in a dry pan before adding them to the topping can make a significant difference. For make-ahead purposes, ensure the sweet potato mixture is completely cooled before covering and refrigerating to prevent condensation, and always add the topping just before baking for optimal crispness.