Ultimate Chocolate Peanut Butter Cake

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This Ultimate Chocolate Peanut Butter Cake recipe is deliciously light and drool-worthy!  It’s layered with creamy peanut butter mousse, chocolate fudge ganache and loaded with our favorite Reese’s Peanut Butter Cups! 

More delicious desserts?  Chocolate Chunk Cookies, 25 Rockin’ Chocolate Chip Cookie Recipes, 25 Drool-Worthy Red Velvet Dessert Recipes and National Chocolate Chip Day Cookie Recipes are all fun!

This ultimate peanut butter cake is such a delectable dessert for a romantic Valentine Dinner or any time when you want to impress!  x

It’s baked in a loaf pan and then split down the middle to add all the goodies in the center and on top! Talk about some peanut butter and chocolate love!  

The smitten explosions of peanut butter and chocolate overload will send your heart out to orbit.  Ready to live dangerously?  My ‘peanut butter’ cup love can keep running over with this.  I won’t complain. 

Gather Your Ingredients

Homemade Chocolate Peanut Butter Cake Recipe

Peanut Butter Cake

• all-purpose flour
• baking powder
• baking soda
• salt
• olive oil or your choice of oil
• Reese’s peanut butter or your choice of creamy peanut butter
• brown sugar
• egg
• buttermilk or milk of choice
• maple syrup or vanilla extract

Chocolate Ganache Glaze

• whipping cream
• semi-sweet chocolate chips
• peanut butter chips or peanut butter

Peanut Butter Mousse Frosting

• butter, softened
• Reese’s peanut butter
• vanilla extract
• powdered sugar
• whipping cream or milk add more if needed
• mini or large Reese’s Peanut Butter Cups cut into chunks

How to Make Ultimate Chocolate Peanut Butter Cake

 Peanut Butter Cake

1. Preheat the oven to 350 degrees and grease 9×5 loaf pan.
2. In a medium bowl, add flour, baking powder, baking soda and salt and whisk for about 45 seconds.
3. Using a mixer, in a large bowl add the peanut butter, oil, and brown sugar and beat until combined.
4. Add eggs and maple syrup or vanilla extract and continue beating until just combined.
5. Alternately add the flour and buttermilk to the wet mixture, beating just until combined and do not overbeat. (A few small lumps of flour is fine, overbeating will result in a dry, dense cake.)
6. Pour batter into the bread loaf pan.
7. Bake for about 15-18 minutes.
8. Let the cake sit in the pan for 5 minutes, then invert the cake onto a wire rack to cool completely.

How to Make Chocolate Ganache

Chocolate Ganache Glaze

1. Microwave the heavy cream in the microwave for 2-3 minutes or starting to boil.
2. Add in chocolate and peanut butter chips and let sit for a minute or two then whisk for a couple of minutes.

How to Make Ultimate Peanut Butter Mousse Frosting

Peanut Butter Mousse Frosting

1. Cream butter and add in all other ingredients until combined and creamy.
2. Cut the cooled cake in half horizontally. Frost the bottom top half of the cake, drizzle some chocolate ganache and then add some chopped Reese cups on top
3. Place the top layer of the cake, upside down, on top of the bottom layer and repeat with another layer of frosting, chocolate ganache and Reese’s cups.
4. Place in fridge until ready to slice and serve. Allowing time for the cake to chill and settle overnight further intensifies the flavors and makes for a delightful texture. 

I made these Double Stuffed Peanut Butter Cup Bliss Cupcakes using the same exact ingredients as this Chocolate Peanut Butter Cake! They are truly the most rich and decadent cupcakes ever!  

At the end of the day, this homemade Chocolate Peanut Butter Cake ticks all the boxes. There’s no denying that it’s a dessert powerhouse—chocolate and peanut butter in perfect harmony, like this Reese’s Peanut Butter Pie.

This Ultimate Chocolate Peanut Butter Cake is one of the best ways to end a meal or provide a sweet treat to friends and family. So, let’s grab our mixing bowls and bake a cake that’s sure to leave a lasting impression.

Here’s the recipe!  Enjoy those peanut butter and chocolate explosions! 

More Peanut Butter Cup Dreams!

• Peanut Butter Cup Chocolate Cookies
• Ultimate Chocolate Peanut Butter Cup Stuffed Krispie Treats
• Peanut Butter Cup Explosion Cookies
• Reese’s Peanut Butter Cup Chocolate Chip Oatmeal Cookies
• Peanut Butter Stuffed Brownies
• Creamy Home-made Mini Peanut Butter Cups
• Ultimate Reese’s Peanut Butter Cup Brownie Trifle
• “Phenomenal” Milk Chocolate Chip Peanut Butter Cookies
• Reese’s S’mores Graham Cracker Candy
• Reese’s & Milk Chocolate Chip Cookie Bars

Ultimate Chocolate Peanut Butter Explosion Cake

Kim Lange

The peanut butter cake is light and moist, Perfectly layered with that creamy peanut butter mousse, chocolate fudge ganache and our favorite -- Reese's Peanut Butter Cups! My cup can keep running over with this. I won't complain.

5 from 1 vote

Print Recipe Pin Recipe

Course Dessert

Servings 8 Servings

Calories

Ingredients

 

US CustomaryMetric

 

1x2x3x

Peanut Butter Cake

• ¾ cups all-purpose flour
• 1 teaspoons baking powder
• ¼ teaspoon baking soda
• ¼ teaspoon salt
• 2 ½ Tablespoons olive oil or oil of choice
• 3 Tablespoons Reese's peanut butter or peanut butter of choice
• ½ cup brown sugar
• 1 large egg
• ½ cup buttermilk or milk of choice
• ½ teaspoon maple syrup or vanilla extract

Chocolate Ganache Glaze

• 1 cup whipping cream
• 1 cup semi-sweet chocolate chips
• ¼ cup peanut butter chips or 2-3 tablespoons peanut butter

Peanut Butter Mousse Frosting

• 4 tablespoons butter softened
• ¼ cup Reese's peanut butter or peanut butter of choice
• 1 teaspoon vanilla extract
• 1 ½ cups powdered sugar
• 5 tablespoons whipping cream or milk add more if needed
• 1 bag mini or large Reese's Peanut Butter Cups cut into chunks

US Customary - Metric

Instructions

 

Peanut Butter Cake

• Preheat the oven to 350 degrees and grease 9x5 loaf pan. Can also line with parchment paper for easy removal.
• In a medium bowl, add flour, baking powder, baking soda and salt and whisk for about 45 seconds.
• Using a mixer, in a large bowl add the peanut butter, oil, and brown sugar and beat until combined.
• Add eggs and maple syrup or vanilla extract and continue beating until just combined.
• Alternately add the flour and buttermilk to the wet mixture, beating just until combined and do not overbeat. (A few small lumps of flour is fine, overbeating will result in a dry, dense cake.)
• Pour batter into the bread loaf pan.
• Bake for about 15-18 minutes.
• Let the cake sit in the pan for 5 minutes, then invert the cake onto a wire rack to cool completely.

Chocolate Ganache Glaze

• Microwave the heavy cream in the microwave for 2-3 minutes or starting to boil.
• Add in chocolate and peanut butter chips and let sit for a minute or two then whisk for a couple of minutes.

Peanut Butter Mousse Frosting

• Cream butter and add in all other ingredients until combined and creamy.
• Cut the cooled cake in half horizontally. Frost the bottom top half of the cake, drizzle some chocolate ganache and then add some chopped Reese cups on top
• Place the top layer of the cake, upside down, on top of the bottom layer and repeat with another layer of frosting, chocolate ganache and Reese's cups.
• Place in fridge until ready to slice and serve.

Keyword cake, chocolate, layered dessert, peanut butter, peanut butter and chocolate, peanut butter cups

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