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Heavenly chocolate peanut butter ooey gooey cake with rich layers
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Heavenly Chocolate Peanut Butter Ooey Gooey Cake

A decadent chocolate cake with a creamy peanut butter filling and glossy chocolate ganache, perfect for any celebration.
Prep Time30 minutes
Cook Time35 minutes
Total Time1 hour 5 minutes
Course: Cake, Dessert
Cuisine: American
Keyword: Chocolate Cake, Decadent Dessert, Family Recipe, moist cake, peanut butter dessert
Servings: 8 pieces
Calories: 450kcal

Ingredients

For the cake

  • 1.5 cups all-purpose flour Provides essential structure.
  • 1 cup granulated sugar Adds sweetness and moisture.
  • 0.5 cups unsweetened cocoa powder Gives the cake its deep chocolate flavor.
  • 1.5 teaspoons baking powder Essential for the cake's rise.
  • 0.5 teaspoons baking soda Ensures the cake rises beautifully.
  • 0.25 teaspoons salt Enhances sweetness and flavor.
  • 0.5 cups buttermilk Adds moisture and tang.
  • 0.5 cups vegetable oil Keeps the cake tender and moist.
  • 2 large eggs Binds ingredients and adds richness.
  • 1 teaspoon vanilla extract Infuses warmth and depth of flavor.
  • 0.5 cups boiling water Helps to bloom cocoa for moistness.

For the peanut butter filling

  • 1 cup creamy peanut butter Provides rich, nutty flavor.
  • 1 cup powdered sugar Sweetens and smoothens the filling.
  • 0.5 cups unsalted butter, softened Adds creaminess to the filling.
  • 0.5 cups heavy cream Elevates richness of filling.

For the ganache

  • 1 cup heavy cream Creates a glossy topping.
  • 1 cup semi-sweet chocolate chips Adds a luscious chocolate layer.
  • 1 tablespoon unsalted butter Adds glossiness to the ganache.

Instructions

Preparation

  • Preheat your oven to 350°F (175°C) and prepare a 9-inch round cake pan.
  • In a large bowl, whisk together flour, sugar, cocoa powder, baking powder, baking soda, and salt.
  • In another bowl, mix buttermilk, vegetable oil, eggs, and vanilla extract; add to the dry ingredients and stir gently.
  • Stir in boiling water until well combined.

Baking

  • Pour batter into the prepared cake pan and bake for 30-35 minutes. Let cool completely.

Peanut Butter Filling

  • Beat together peanut butter, powdered sugar, softened butter, and heavy cream until smooth.
  • Spread the peanut butter filling over the cooled cake.

Chocolate Ganache

  • Heat heavy cream until simmering, remove from heat, and add chocolate chips and butter. Stir until smooth.
  • Pour ganache over the peanut butter filling and spread evenly.

Notes

Use room temperature ingredients for better emulsion. Avoid overmixing to retain cake tenderness. Allow cake to cool completely before adding filling and ganache.