Susan's Sweet Potato Casserole


My mother-in-law's amazing sweet potato casserole recipe has everyone demanding them every year. We made a few slight modifications to make it a little less sweet so my husband could have marshmallows on top.

Prep Time:
15 mins
Cook Time:
1 hrs
Total Time:
1 hrs 15 mins
1 9-inch dish


Sweet Potato Layer:

  • 3 cups cooked, mashed sweet potatoes

  • ¾ cup white sugar

  • 2 eggs, beaten

  • cup milk

  • 3 tablespoons butter, melted

  • ½ teaspoon vanilla extract

  • ½ teaspoon salt


  • 1 cup chopped pecans

  • ½ cup brown sugar

  • cup all-purpose flour

  • ¼ cup butter, melted

  • 1 (10 ounce) package marshmallows, or to taste


  1. Preheat oven to 325 degrees F (165 degrees C).

  2. Beat mashed sweet potato, white sugar, eggs, milk, 3 tablespoons melted butter, vanilla extract, and salt together in a large bowl until smooth; spread ito a 9-inch square baking dish.

  3. Bake in preheated oven until firmly set, about 45 minutes.

  4. Mix chopped pecans, brown sugar, flour, and 1/4 cup melted butter together in a bowl until dry ingredients are evenly moistened; spread evenly over the sweet potato mixture and top with marshmallows.

  5. Return dish to oven and bake until marshmallows are lightly browned, about 15 minutes.

Cook's Note:

Use any type of chopped nuts, though pecan is best.

Nutrition Facts (per serving)

360 Calories
14g Fat
57g Carbs
4g Protein
Nutrition Facts
Servings Per Recipe 12
Calories 360
% Daily Value *
Total Fat 14g 18%
Saturated Fat 5g 26%
Cholesterol 49mg 16%
Sodium 202mg 9%
Total Carbohydrate 57g 21%
Dietary Fiber 3g 11%
Total Sugars 38g
Protein 4g
Vitamin C 11mg 53%
Calcium 49mg 4%
Iron 1mg 7%
Potassium 263mg 6%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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