Reese’s Peanut Butter Cake That Tastes Like a Giant Candy Bar

Reese’s peanut butter cake is the ultimate dessert recipe for chocolate and peanut butter lovers—rich, decadent, and guaranteed to steal the show.

If you’re searching for a cake that’s easy to make, totally crave-worthy, and perfect for birthdays, parties, or just satisfying your sweet tooth, you’re in the right place.

This recipe will walk you through how to make a drool-worthy treat that tastes like a giant Reese’s cup in cake form.

With layers of moist chocolate cake, creamy peanut butter frosting, and a luscious ganache drizzle, this dessert delivers bakery-quality results without the fuss.

Whether you’re baking for a celebration or just want to treat yourself to something indulgent, this irresistible peanut butter and chocolate combo is the perfect excuse to grab a fork and dig in.

A round Reese’s peanut butter chocolate cake topped with chocolate glaze, swirled frosting, and chopped Reese’s cups sits on a white plate. The Reese’s logo and the words “Peanut Butter Cake” appear with Reese’s cups on a white background.

How to Make a Reese’s Cake

You can print the full recipe with step-by-step instructions at the bottom of this post to keep it handy for your next baking day!

  1. Use room temperature ingredients: Let the butter, eggs, and milk come to room temp before baking. This helps everything blend more smoothly.
  2. Start by mixing dry ingredients (flour, cocoa, sugar, etc.) with wet ingredients (egg, milk, oil, etc.) to create a smooth chocolate cake batter.
  3. Divide between two greased 6-inch pans and bake at 350°F for 24 minutes.
  4. Once cooled, level the cakes by using a serrated knife or cake leveler to trim off the domed tops for a professional-looking layer cake.
  5. For the peanut butter frosting, beat together butter and peanut butter, then gradually mix in powdered sugar and milk until fluffy.
  6. Frost between the layers and all around the cake. Chill for 30 minutes.
  7. Make the ganache by melting chocolate chips and cream.
  8. Let it cool slightly, then drizzle around the cake and spread over the top.
  9. Test your ganache drip on the side of a bowl first to make sure it’s the right consistency—not too thick, not too runny.
  10. Once set, pipe swirls of peanut butter frosting and top with chopped Reese’s cups.

Can I use a boxed cake mix instead?

Yes! You can use your favorite chocolate cake mix if you’re short on time. Just make the frosting and ganache from scratch for that homemade flavor boost.

Can I make this cake ahead of time?

Absolutely. Bake the cake layers a day in advance and store them wrapped in plastic wrap. Assemble and decorate the next day.

A close-up of a fork holding a bite of rich Reese’s peanut butter chocolate cake, with the remaining cake on a white plate in the background. Orange fabric and a jar of frosting are also visible.
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A round Reese’s peanut butter chocolate cake with ganache dripping down the sides, topped with swirls of frosting and pieces of peanut butter cups, sits on a square white plate. A jar of peanut butter and a bottle of milk are in the background.

 Having issues with your cake layers or frosting? Grab our Baking Troubleshooting Guide to help you fix common problems with ease!Having issues with your cake layers or frosting? Grab our Baking Troubleshooting Guide to help you fix common problems with ease!

 

A round Reese’s peanut butter chocolate cake topped with chocolate ganache, peanut butter frosting swirls, and pieces of peanut butter cups, displayed on a white plate with an orange cloth and peanut butter cups nearby.

If you’re as obsessed with peanut butter and chocolate as we are, you’ll definitely want to check out these other great dessert ideas too!

A decadent Reese’s peanut butter chocolate cake topped with light brown frosting and chopped peanut butter cups, served on a white square plate. Nearby are a glass bottle of milk, a jar of chocolate chips, and an orange plaid napkin.

Ready to bake like a pro? Grab your free go-to guide for sweet success and start whipping up irresistible treats today!

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    A round Reese’s peanut butter chocolate cake topped with chocolate ganache, peanut butter frosting swirls, and pieces of peanut butter cups, displayed on a white plate with an orange cloth and peanut butter cups nearby.

    Reeses peanut butter cake

    The BEST Reese’s peanut butter cake recipe with ganache, frosting, and candy on top!
    Print Pin Rate
    Course: Cake, desserts
    Cuisine: American
    Keyword: Reeses cake, Reeses peanut butter cake
    Prep Time: 1 hour
    Cook Time: 20 minutes
    Additional Time: 45 minutes
    Total Time: 2 hours 5 minutes
    Servings: 1 cake
    Author: momma lew

    Ingredients

    • Cake:
    • 1 cup all-purpose flour
    • 1/2 teaspoon baking soda
    • 1/2 teaspoon baking powder
    • 1 cup granulated sugar
    • 1/4 cup baking cocoa powder
    • 1/2 teaspoon salt
    • 1 large egg
    • 1/2 cup whole milk
    • 1/4 cup vegetable oil
    • 3/4 teaspoon vanilla extract
    • 1/3 cup hot water
    • Frosting:
    • 1 1/3 cups salted butter room temperature
    • 3/4 cup + 1 tablespoon smooth peanut butter
    • 3 1/3 cups powdered sugar
    • 4-5 tbsp whole milk
    • Ganache:
    • 1 cup Chocolate chips
    • 1 cup heavy cream
    • Toppings
    • 4 reese’s cups regular size Reese’s brand

    Instructions

    • Preheat the oven to 350°f.
    • In a large mixing bowl, combine the dry ingredients: the flour, baking powder, baking soda, sugar, cocoa, and salt.
    • Add the wet ingredients: egg, milk, oil, vanilla, and water. Mix until the cake batter is fully incorporated and smooth.
    • Spray the two 6” cake pans with cooking spray and pour the evenly divided amount of batter in each.
    • Place the pans in the preheated oven and cook on the center rack at 350°f for 24 minutes. Test the center of the cakes with a toothpick to be sure they’re fully cooked.
    • Once cooked, remove and set aside to completely cool before removing the cakes from the pan – about 25 minutes at room temperature.
    • While the cakes are cooling, add the softened butter and peanut butter to a mixing bowl. Using a hand or stand mixer, whisk on medium speed until creamy and soft peaks form. Gradually add the powdered sugar and milk, alternating the two until the frosting is silky and light.
    • Once cakes are fully cooled, using a cake or bread knife slice off the risen center of the cakes making them flat-topped.
    • Place the cake layers on a flat surface. Add about a cup of frosting on the first cake layer and evenly spread leaving a 1/2” thickness in between the layers of chocolate cake. Flip the second layer upside down and on top of the frosted cake.
    • Completely frost the layer cake with a generous layer of frosting. Smooth frosting as desired on the outside of the cake.
    • Place the frosted cake in the fridge for 30 minutes.
    • In a microwave-safe bowl, add the chocolate chips and cream. Microwave for 45 seconds. Remove and mix until smooth. If the chocolate is not fully melted, microwave in 20-second intervals stirring between until the ganache is smooth.
    • Let the ganache cool to 90°f before topping the cake.
    • Place the ganache in a piping bag without a piping tip. Cut a very small hole in the tip. Pipe the ganache around the edge of the cake, creating small globs that drip. Spaced out as desired.
    • Once the edge is piped, fill in the remaining top of the cake. Smooth with an offset spatula.
    • Allow the ganache to cool and harden – should take about 15 minutes on the countertop room temperature or 10 minutes in the fridge.
    • Place the remaining peanut butter frosting in another piping bag with an open star tip. Pipe swirl mounds of peanut butter frosting around the cake top evenly space.
    • Chop the reese's peanut butter cups into bite-size pieces and spread them over the ganache top.
    • Refrigerate your chocolate peanut butter cake recipe until it is ready to serve. Enjoy the cake for up to 3-4 days. 

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