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This colossal Peanut Butter Chocolate Cake recipe is made from scratch and is garnished with peanut butter chocolate truffles rolled in peanut butter & cocoa pebbles cereal

Peanut Butter Chocolate Cake

This colossal Peanut Butter Chocolate Cake recipe is made from scratch and is garnished with peanut butter truffles. The ultimate cake for celebrations

Course Dessert
Cuisine American
Keyword anniversary cakes, chocolate frosting, peanut butter cake, seven layer cake
Prep Time 20 minutes
Cook Time 55 minutes
Cooling Time 3 hours
Total Time 1 hour 15 minutes
Servings 20 slices
Calories 753 kcal


For Peanut Butter Cakes

  • 4 cups Cake Flour
  • 1 1/2 teaspoons Baking Powder
  • 1 teaspoon Baking Soda
  • 1 teaspoon Salt
  • 1 1/2 cup Unsalted Butter softened
  • 1/2 cup Peanut Butter
  • 1 1/4 cup Brown Sugar
  • 2 large Eggs
  • 1 1/2 cups Milk
  • 1/2 cup Sour Cream
  • 1 teaspoon Vanilla

For Chocolate Frosting

  • 3 cups Peanut Butter & Cocoa Pebbles Cereal
  • 1 1/2 cups Butter softened
  • 4 1/2 cups Confectioners Sugar
  • 3/4 cup Cocoa Powder
  • 3 teaspoons Vanilla
  • 6 tablespoons Sour Cream

For Peanut Butter Chocolate Truffles

  • 1 cup Peanut Butter
  • 2 tablespoons Confectioners Sugar
  • 2 cups Peanut Butter & Cocoa Pebbles Cereal

For Chocolate Ganache

  • 1 cup Semi-Sweet Chocolate Chips
  • 1/2 cup Heavy Cream
  • 2 teaspoons Color Sprinkles optional


For Peanut Butter Cakes

  1. Preheat oven to 350 F

  2. Grease seven 8" Cake Pans*

  3. In a bowl, combine the flour, salt, baking powder and baking soda. Set aside

  4. Combine the milk and sour cream together, set aside

  5. Using the mixer, combine the butter, peanut butter and brown sugar for 4-5 minutes or until creamy

  6. Add the eggs one at a time mixing well after each addition. Pour in the vanilla

  7. Add 1/3 of the flour mixture alternating with the milk mixture starting and ending the flour. Do not overmix 

  8. Pour 1 cup of cake batter on each of the cake pans and spread evenly (batter will be thick). Bake for 10-12 minutes or until browned on top and springy to the touch

  9. Remove from oven and cool in pan for 10 minutes and unmold onto a baking rack to cool of completely

For Chocolate Frosting

  1. Ground cereal in a food processor

  2. Sift the confectioners sugar and cocoa into a bowl. Add the cereal and mix. Set aside 

  3. Using the mixer, whip the butter for 3-4 minutes until creamy. Add the vanilla

  4. With the mixer running, slowly add the sugar mixture.

  5. Finally, add the sour cream and mix well

For Peanut Butter Chocolate Truffles

  1. Ground 1 cup of cereal in a food processor (save the other cup for later)

  2. In a bowl, mix the ground cereal, peanut butter, and confectioners sugar. Cover and freeze for 1 hour or until firm

  3. Remove from bowl and shape into 1 teaspoon balls. Roll each ball with the remaining cereal 

  4. Freeze truffles until ready to use 

For Chocolate Ganache

  1. In a bowl, add the chocolate chips

  2. Microwave cream for 45 minutes or until boiling

  3. Pour the hot heavy cream on top of the chocolate chips and let it stand for 2 minutes

  4. After 2 minutes, mix with a spoon until the chocolate chips are completely melted and the mixture is smooth


  1. Place 1 layer of cake into a cake plate and add a thin layer of chocolate frosting. Top with next layer of cake and repeat with the next layer of cakes

  2. Frost top and sides of the cake with the remaining chocolate frosting. Refrigerate for 30 minutes until set

  3. Drizzle the warm ganache all over the top of the cake and let it drip down the sides

  4. Add the sprinkles and decorate with the truffles all around the top and the bottom

  5. Refrigerate until ready to serve

  6. Enjoy!

Recipe Notes

*If you don't have seven 8" cake pans, use as many as you can and take turns in the oven.

Nutrition Facts
Peanut Butter Chocolate Cake
Amount Per Serving (1 slice)
Calories 753 Calories from Fat 423
% Daily Value*
Fat 47g72%
Saturated Fat 24g150%
Cholesterol 107mg36%
Sodium 446mg19%
Potassium 363mg10%
Carbohydrates 76g25%
Fiber 3g13%
Sugar 48g53%
Protein 11g22%
Vitamin A 1060IU21%
Vitamin C 0.1mg0%
Calcium 92mg9%
Iron 1.8mg10%
* Percent Daily Values are based on a 2000 calorie diet.