Rating: 5.00
(7)

Chocolate Snacking Cake with Peanut Butter Buttercream

By Rachel
February 15, 2022

This chocolate snacking cake is light, airy, and full of rich chocolate flavor. Topped with creamy peanut butter buttercream, this cake is a perfect weekend bake or a quick option if you need something last minute. This snacking cake is easy to frost and easy to travel with it!

plate with slice chocolate cake with peanut butter frosting

Pro tips for failproof cake:

  • Grease and parchment line your baking dish, this helps ensure nothing sticks
  • Don’t over mix batter
  • Use room temperature eggs for even emulsification
  • Let cake cool completely before frosting
  • Enjoy as soon as possible!
baked chocolate cake with dollop of buttercream

Tools I used for this recipe:

  • KitchenAid 6 Qt. Stand Mixer – I always recommend a stand mixer as it saves time and helps to keep baked goods consistent.
  • Rubber Spatula – a must for any home baker! Perfect for scrapping batter out of the mixing bowl.
  • USA Pan 8″ Square Pan – another USA Pan product I love! The corners of my bars and cakes never stick and I love the squared of edges this pan creates.
bowl of peanut butter buttercream

Peanut butter buttercream is quick and easy to make. Add in some chopped peanuts for a crunchy texture!

Highlights of this chocolate cake recipe:

  • Moist cake
  • Light & airy
  • Full of chocolate flavor
  • Simple peanut butter frosting
  • Bakes quickly in an 8″ x 8″ pan
  • Oil based
cake frosted and cut into squares

If you like this chocolate snacking cake, you’ll love….

Coffee Cupcakes with Espresso Buttercream Frosting

Chocolate Loaf Cake with Cream Cheese Frosting

One Bowl Fluffy Vanilla Cupcake Recipe with Oil

Cinnamon Snacking Cake with Maple Frosting

Easy Banana Cake with Chocolate Frosting

Grocery List:

  • Oil
  • Sugar
  • Vanilla
  • Eggs
  • Butter
  • Flour
  • Peanut Butter
  • Baking Powder
  • Baking Soda
  • Salt
  • Cream
  • Powdered Sugar
  • Cocoa Powder
unbaked cake batter

Instructions:

For the Cake:

  • Preheat oven to 350 degrees F. Grease and line a 8″x8″ baking pan, set aside.
  • In a medium mixing bowl whisk together the flour, cocoa, baking soda, baking powder, and salt, combine and set aside.
  • In a large mixing bowl whisk together the oil, sugar, eggs and vanilla extract until smooth. Gently whisk in the milk. Fold the dry ingredients into the wet, mix gently until smooth. Careful not to overmix. Transfer the batter into the prepared baking pan.
  • Bake in a preheated oven for 22-25 minutes or until a toothpick inserted comes out clean. Allow to cool completely before frosting.

For the Peanut Butter Buttercream:

  • In the bowl of a stand mixer fitted with the paddle attachment or in a large bowl with a handheld electric mixer, beat the butter until light and fluffy, 4-5 minutes. Add in the peanut butter and mix another 1-2 minutes.
  • Then add about half of the powdered sugar and beat on low until fully incorporated. Add in the remaining powdered sugar, vanilla extract, and salt. Beat on low speed again just until the powdered sugar is incorporated.
  • Scarpe down the sides of the bowl, add in the heavy cream and mix on low again until smooth. If the frosting is to thick, thin with extra cream, if it is to thin, add extra powdered sugar. Spread the buttercream over the cool chocolate cake. Top with crushed peanut if desired, slice, and enjoy!
corner slice of cake
chocolate snacking cake

Chocolate Snacking Cake with Peanut Butter Buttercream

5 from 7 votes
Light, airy, chocolate cake topped with creamy peanut butter buttercream
Servings 9 servings
Prep Time 25 minutes
Cook Time 25 minutes
Total Time 50 minutes

Equipment

  • 8"x8" pan

Ingredients
  

For the Cake:

  • 3/4 cup All-purpose flour
  • 1/2 cup Unsweetened cocoa powder
  • 1 tsp Baking powder
  • 1 tsp Baking soda
  • 1/4 tsp Salt
  • 1/2 cup Canola oil or vegetable oil
  • 1 cup Granulated sugar
  • 2 Eggs, room temperature
  • 1 tbsp Vanilla extract
  • 1/2 cup Milk, can substitute a non-dairy milk like Almond milk

For the Peanut Butter Buttercream:

  • 1 cup Unsalted butter, softened
  • 3/4 cup Creamy Peanut Butter
  • 4 cups Powdered sugar, sifted
  • 1/2 tsp Salt
  • 1 tbsp Vanilla extract
  • 6 tbsp Heavy cream

Instructions
 

For the Cake:

  • Preheat oven to 350 degrees F. Grease and line a 8"x8" baking pan, set aside.
  • In a medium mixing bowl whisk together the flour, cocoa, baking soda, baking powder, and salt, combine and set aside.
  • In a large mixing bowl whisk together the oil, sugar, eggs and vanilla extract until smooth. Gently whisk in the milk. Fold the dry ingredients into the wet, mix gently until smooth. Careful not to overmix. Transfer the batter into the prepared baking pan.
  • Bake in a preheated oven for 22-25 minutes or until a toothpick inserted comes out clean. Allow to cool completely before frosting.

For the Peanut Butter Buttercream:

  • In the bowl of a stand mixer fitted with the paddle attachment or in a large bowl with a handheld electric mixer, beat the butter until light and fluffy, 4-5 minutes. Add in the peanut butter and mix another 1-2 minutes.
  • Add about half of the powdered sugar and beat on low until fully incorporated. Add in the remaining powdered sugar, vanilla extract, and salt. Beat on low speed again just until the powdered sugar is incorporated.
  • Scarpe down the sides of the bowl, add in the heavy cream and mix on low again until smooth. If the frosting is to thick, thin with extra cream, if it is to thin, add extra powdered sugar. Spread the buttercream over the cool chocolate cake. Top with crushed peanut if desired, slice, and enjoy!

Nutrition

Serving: 1sliceCalories: 825kcalCarbohydrates: 92gProtein: 9gFat: 50gSaturated Fat: 19gPolyunsaturated Fat: 8gMonounsaturated Fat: 20gTrans Fat: 1gCholesterol: 106mgSodium: 490mgPotassium: 274mgFiber: 3gSugar: 78gVitamin A: 852IUVitamin C: 1mgCalcium: 78mgIron: 2mg
Author: The Hearty Life
Calories: 825kcal
Cost: $
Course: Dessert
Cuisine: American
Keyword: Buttercream, Cake, Chocolate, Sheet cake

Did you make this recipe?

Please let me know how it turned out for you! Leave a comment below and tag @theheartylife on Instagram and hashtag it #theheartylife.

frosted chocolate cake
5 from 7 votes (7 ratings without comment)

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