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Close-up of a slice of sweet potato casserole with pecan crumble topping on a white plate over marble background.

Sweet Potato Casserole: Your Guide to a Holiday Classic

This sweet potato casserole recipe combines creamy mashed sweet potatoes with your choice of pecan crumble, marshmallow topping, or both. A classic holiday side dish with variations, history, and expert tips, it’s the ultimate guide to serving this Southern-inspired favorite for Thanksgiving or Christmas.

  • Total Time: 50 minutes
  • Yield: 810 servings 1x

Ingredients

Scale

For the Sweet Potato Filling:

  • 4 large sweet potatoes (about 3 lbs), peeled and cubed
  • ½ cup unsalted butter, melted
  • ½ cup brown sugar
  • ¼ cup granulated sugar
  • ½ cup milk (or cream for richness)
  • 2 large eggs, beaten
  • 1 tsp vanilla extract
  • 1 tsp cinnamon
  • ½ tsp nutmeg
  • Pinch of salt

For Pecan Crumble Topping (optional):

  • ½ cup brown sugar
  • ⅓ cup all-purpose flour
  • ⅓ cup unsalted butter, softened
  • 1 cup chopped pecans

For Marshmallow Topping (optional):

  • 23 cups mini marshmallows

Instructions

  1. Boil peeled, cubed sweet potatoes in salted water until tender (15–20 minutes). Drain well.
  2. Mash, then mix with melted butter, sugars, milk, eggs, vanilla, cinnamon, nutmeg, and salt.
  3. Spread filling into a greased 9×13-inch baking dish.
  4. Add toppings:
    • Pecan crumble: Mix crumble ingredients and sprinkle over filling.
    • Marshmallows: Add during the last 10 minutes of baking.
  5. Bake at 350°F (175°C):
    • With pecans: 25–30 minutes.
    • With marshmallows: 20 minutes, then add marshmallows for 10 minutes until golden.
  6. Cool for 5 minutes, then serve warm.

Notes

  • For a richer flavor, roast sweet potatoes whole instead of boiling.
  • Reduce sugar if using marshmallows to avoid excess sweetness.
  • Make ahead: Assemble filling 1–2 days before serving, refrigerate, then bake with toppings fresh.
  • Author: Soukaina
  • Prep Time: 20 minutes
  • Cook Time: 30 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 portion (about 1/10 of casserole)
  • Calories: 340 kcal
  • Sugar: 22 g
  • Sodium: 130 mg
  • Fat: 15 g
  • Saturated Fat: 7 g
  • Unsaturated Fat: 7 g
  • Trans Fat: 0 g
  • Carbohydrates: 48 g
  • Fiber: 4 g
  • Protein: 4 g
  • Cholesterol: 55 mg