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M&M's Peanut Butter Cake with creamy peanut butter frosting on top
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M&M's Peanut Butter Cake with Peanut Butter Frosting

Indulge in the delectable M&M's Peanut Butter Cake, featuring rich chocolate layers and velvety peanut butter frosting, perfect for any celebration.
Prep Time30 minutes
Cook Time35 minutes
Total Time1 hour 30 minutes
Course: Cake, Dessert
Cuisine: American
Keyword: Baking, cake recipe, dessert, M&M's, Peanut Butter Cake
Servings: 12 servings
Calories: 350kcal

Ingredients

Dry Ingredients

  • 2 cups all-purpose flour This foundation of the cake provides a tender texture.
  • 1 cup granulated sugar Adding just the right amount of sweetness.
  • 1 cup brown sugar Deepens the cake's richness and moisture.
  • 1 cup unsweetened cocoa powder Envelopes the cake in chocolate goodness.
  • 1 teaspoon baking powder A crucial leavening agent.
  • 2 teaspoons baking soda Ensures light and airy slices.
  • 1/2 teaspoon salt Balances sweetness and enhances flavors.

Wet Ingredients

  • 1 cup buttermilk Adds moisture and a slight tang.
  • 1/2 cup vegetable oil Keeps the cake moist.
  • 2 large eggs Binds the ingredients.
  • 2 teaspoons vanilla extract Adds a warm aroma.
  • 1 cup hot water Enhances chocolate flavor.

Additional Ingredients

  • 1 cup M&M’s Peanut Butter Adds crunch and bursts of sweetness.
  • 1 cup unsalted butter, softened Creates a smooth frosting base.
  • 1 cup creamy peanut butter Rich and nutty, the star of the frosting.
  • 4 cups powdered sugar Sweetens the frosting.
  • 1/4 cup heavy cream Makes frosting dreamy and spreadable.
  • 1 teaspoon vanilla extract Enhances the frosting flavor.
  • 1 cup M&M’s Peanut Butter for decoration Adds a pop of color.

Instructions

Preparation

  • Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
  • In a large mixing bowl, whisk together the dry ingredients: all-purpose flour, granulated sugar, brown sugar, cocoa powder, baking powder, baking soda, and salt.
  • Add the wet ingredients: buttermilk, vegetable oil, eggs, and vanilla extract. Mix on medium speed until smooth.
  • Gradually stir in the hot water, then gently fold in the M&M’s Peanut Butter.

Baking

  • Divide the batter evenly between the prepared cake pans. Bake for 30-35 minutes, or until a toothpick comes out clean.
  • Allow the cakes to cool in the pans for 10 minutes, then transfer to a wire rack to cool completely.

Frosting and Assembly

  • In a large bowl, beat together the unsalted butter and creamy peanut butter until smooth. Gradually add the powdered sugar, alternating with heavy cream.
  • Add the vanilla extract and mix until combined.
  • Frost the first cake layer, then add the second layer and frost the top and sides of the cake.
  • Top with additional M&M’s Peanut Butter for decoration.

Serving

  • Slice and serve the cake, enjoying the delightful combination of flavors and textures.

Notes

Use room temperature ingredients for better texture. Be careful not to overmix the batter after adding wet ingredients.