Brown Sugar Pecan Sweet Potato Casserole – A Holiday Favorite

This Brown Sugar Pecan Sweet Potato Casserole is rich, cozy, and beautifully balanced creamy sweet potatoes underneath a buttery, crunchy pecan topping. It’s a classic holiday side that feels comforting and familiar, yet special enough for your most-loved gatherings. Let’s make it the one everyone asks for every year.

Ingredients

For the sweet potato base:

  • 3 lbs sweet potatoes, peeled and cubed
  • 1/2 cup brown sugar
  • 1/4 cup unsalted butter, melted
  • 1/3 cup milk or half-and-half
  • 2 large eggs
  • 1 tsp vanilla extract
  • 1/2 tsp cinnamon
  • 1/4 tsp salt

For the pecan topping:

  • 1 cup chopped pecans
  • 1/2 cup brown sugar
  • 1/3 cup all-purpose flour
  • 1/4 cup unsalted butter, melted

Optional swap: Add a pinch of nutmeg or ginger for extra warmth.

Steps

  1. Cook the sweet potatoes. Boil in salted water until fork-tender, about 15–20 minutes. Drain well.
  2. Mash until smooth. Mash the potatoes until creamy. Don’t worry if they’re not perfectly smooth a little texture is lovely.
  3. Mix the base. Stir in brown sugar, melted butter, milk, eggs, vanilla, cinnamon, and salt until well combined.
  4. Transfer to dish. Spread the sweet potato mixture evenly into a greased 9×13 baking dish.
  5. Make the topping. In a bowl, mix pecans, brown sugar, flour, and melted butter until crumbly.
  6. Top generously. Sprinkle the pecan mixture evenly over the sweet potatoes.
  7. Bake at 350°F for 30–35 minutes, until the topping is golden and the edges are lightly bubbling.
  8. Rest before serving. Let it sit for 10 minutes so it scoops beautifully.

Chef’s Tips

  • Drain potatoes well: Extra moisture can make the base loose instead of fluffy.
  • Use real butter: It makes both layers richer and more flavorful.
  • Make ahead: Assemble the casserole a day early, cover, refrigerate, and bake fresh before serving.

Variations

  • Marshmallow + pecan combo: Add mini marshmallows during the last 10 minutes of baking.
  • Maple pecan version: Swap brown sugar for maple syrup in the base.
  • Lighter option: Reduce sugar slightly and use evaporated milk.