4.86 from 7 votes
Sweet Potato Bars with Maple Frosting
Prep Time
15 mins
Cook Time
20 mins
Cooling Time
1 hr
Total Time
35 mins

Make these sweet potato bars with maple frosting and everyone will ask for the recipe! Full of seasonal flavors, they’re the perfect fall or holiday dessert.

Course: Dessert
Cuisine: American
Keyword: sweet potato
Servings: 35 bars
Author: playdatesparties.com
Sweet Potato Bars
  • 1/2 C butter room temperature
  • 1/2 C brown sugar
  • 1 egg & 1 egg yolk room temp
  • 1 tsp vanilla extract
  • 1 C cooked mashed sweet potato
  • 1 C All Purpose flour
  • 1 C finely ground walnuts approx 1.25C walnut pieces before grinding
  • 1 tsp baking powder
  • 1/2 t salt
  • 1 t ground cinnamon
  • 1 t ground ginger
  • 1/2 t ground nutmeg
  • 1/4 t ground cloves
  • 1/2 C milk room temp
  • 1/4 C chopped walnuts
Maple Buttercream Frosting
  • 1/2 C 1 stick unsalted butter, room temperature
  • 2 cup powdered sugar
  • 1 1/4 tsp maple syrup flavoring
  • 1/4 teaspoons vanilla extract
  • 1/4 teaspoon salt
  • 2 Tbsp whipping cream
Sweet Potato Bars
  1. Preheat oven to 350°F. Prepare a 9x13 cake pan with parchment paper.
  2. In a stand mixer, beat together the butter and brown sugar until light and fluffy. Mix in the eggs, one at a time. Add vanilla extract and sweet potatoes.
  3. In a large bowl, whisk together flour, ground walnuts, baking powder, salt, cinnamon, ginger, nutmeg, and cloves.
  4. Slowly add half the flour mixture to wet ingredients, stirring until just combined. Mix in the milk and then add the remaining flour mixture.
  5. Fold in 1/4 C chopped walnuts.
  6. Spread into prepared pan and bake for 15 - 20 minutes, or until a toothpick inserted into the center of the pan comes out clean.
  7. Cool completely before frosting with maple buttercream.
Maple Buttercream Frosting
  1. Prepare a stand mixer with a whisk attachment.

  2. Whisk together 1/2 C butter & 1/2 C powdered sugar at medium speed

  3. Add remaining powdered sugar 1/2 cup at a time until well blended.

  4. Add salt and maple syrup flavoring 1/4 tsp at a time until desired flavor. Add in vanilla extract and whisk to combine.

  5. Add whipping cream 1 tablespoon at a time and whip at high speed until frosting is light and fluffy.