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Decadent Chocolate Peanut Butter Layer Cake

This sumptuous dessert combines rich chocolate with creamy peanut butter, creating a showstopper that is perfect for any gathering.
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Prep Time 20 minutes
Cook Time 35 minutes
Total Time 55 minutes
Servings: 12 servings
Course: Dessert
Cuisine: American
Calories: 450
Ingredients Method Notes

Ingredients
  

Cake Ingredients
  • 2 cups all-purpose flour Provides a light and fluffy texture.
  • 1 ¾ cups granulated sugar Sweetness that perfectly balances the rich flavors.
  • ¾ cup unsweetened cocoa powder The star ingredient for a chocolate lover's dream.
  • 2 teaspoons baking powder Ensures the cake rises beautifully.
  • 1 ½ teaspoons baking soda Works alongside baking powder for the perfect lift.
  • 1 teaspoon salt Enhances the flavors and balances the sweetness.
  • 2 large eggs Offers structure and richness.
  • 1 cup whole milk Adds moisture to keep the cake tender.
  • ½ cup vegetable oil For a moist and fluffy crumb.
  • 2 teaspoons vanilla extract Infuses a warm, inviting flavor.
  • 1 cup boiling water Keeps the batter silky and smooth, resulting in an incredibly moist cake.
Frosting & Topping Ingredients
  • 1 cup creamy peanut butter The perfect partner to chocolate, creating that beloved flavor combination.
  • 1 cup heavy cream Essential for whip and texture.
  • 2 cups dark chocolate chips The final touch in your beautiful chocolate ganache.
  • crushed peanuts (for decoration) A delightful, crunchy topping that adds visual and textural contrast.

Method
 

Preparation
  1. Preheat your oven to 350°F (175°C) and prepare two 9-inch round cake pans by greasing and flouring them.
  2. In a large mixing bowl, combine the all-purpose flour, granulated sugar, cocoa powder, baking powder, baking soda, and salt. Whisk these dry ingredients together until evenly mixed.
  3. Add the eggs, whole milk, vegetable oil, and vanilla extract to the bowl. Use a mixer to beat the mixture on medium speed until smooth and well combined.
  4. Gradually pour in the boiling water to the batter, mixing until you have a homogeneous and thin batter.
  5. Evenly divide the batter between the prepared cake pans.
Baking
  1. Bake the cakes in the preheated oven for 30 to 35 minutes, or until a toothpick inserted into the center comes out clean.
  2. Allow them to cool for about 10 minutes, then transfer the cakes to wire racks to cool completely.
Frosting and Ganache
  1. For the frosting, beat the creamy peanut butter and heavy cream until you achieve a smooth and spreadable consistency.
  2. Spread a generous amount of the peanut butter frosting between the two cooled layers.
  3. To prepare the ganache, heat the heavy cream until it's just simmering, then pour it over the dark chocolate chips. Allow it to sit for a minute before stirring until smooth.
  4. Let the ganache cool slightly before pouring it over the assembled cake.
  5. Finish with a sprinkle of crushed peanuts on top.
Serving
  1. Slice and serve the cake to your family and guests.

Notes

For added flavor, consider mixing in a teaspoon of instant coffee granules with the boiling water for enhanced chocolate flavor. Try adding mini chocolate chips into the batter or a layer of crispy rice cereal mixed with chocolate ganache on top for added crunch.