Vanilla Cake with Creamy Peanut Butter Frosting

A Cake To Enjoy With Friends

Peanut Butter Vanilla Cake

Peanut Butter Vanilla Cake is an easy, crowd-pleasing dessert made with a doctored-up yellow cake mix, creamy peanut butter, vanilla extract, butter, milk, and just enough salt to balance the sweetness. The result is a soft, rich, flavorful cake with a tender crumb and a nostalgic peanut butter flavor that tastes homemade without requiring complicated baking skills.

The cake is finished with a simple salted peanut butter buttercream that makes every bite creamy, sweet, and slightly salty. It is the kind of cake that belongs on the kitchen counter, ready to slice when friends, neighbors, or family stop by for coffee. It is also perfect with an icy cold glass of milk, especially if you love the classic combination of peanut butter and vanilla.

This Peanut Butter Vanilla Cake is part of the Counter Cake series, a collection of easy cakes designed for casual entertaining. The idea is simple: keep a delicious cake available for visitors without spending hours in the kitchen. A boxed cake mix provides a reliable base, while a few extra ingredients make the flavor and texture feel special.

For anyone who does not consider themselves a serious baker, this recipe is a great choice. It is forgiving, simple to mix, and easy to serve from a 9 x 13 baking pan. The peanut butter adds richness, the vanilla adds warmth, and the butter gives the cake a soft, decadent texture. It is simple enough for an everyday dessert but tasty enough to bring to a party.

The Counter Cake Series

The Counter Cake series is all about approachable cakes that can be made without stress. These are the kinds of recipes that begin with a boxed cake mix and then get upgraded with ingredients that add flavor, moisture, and personality. They are practical, comforting, and made for sharing.

If you enjoy this Peanut Butter Vanilla Cake, you may also like the other cakes in the series. Each one uses a similar easygoing approach and is designed to be served casually, whether for a weekend gathering, a holiday table, or a simple afternoon treat.

  • Cinnamon Pecan Crunch Coffee Cake
  • Pumpkin Pecan Cake with Cinnamon Cream Cheese Icing
  • Strawberry Crunch Cake
  • Dunkaroos Cake
A big spoon of peanut butter over eggs and cake mix in a bowl

The Box Is Boss

Using a boxed cake mix as the base keeps this peanut butter vanilla cake recipe simple and dependable. A cake mix saves time, gives the batter a consistent structure, and makes this dessert easy for bakers of all experience levels. The added milk, melted butter, creamy peanut butter, vanilla, and salt transform the mix into something richer and more memorable.

Any yellow cake mix can work for this recipe. A golden butter-style cake mix is especially delicious because it pairs well with the added butter and peanut butter, creating a soft cake with a slightly richer flavor. The goal is not to make the recipe complicated. The goal is to take a simple pantry shortcut and turn it into a cake that tastes like it took much more effort than it did.

The batter comes together easily in a stand mixer or a large mixing bowl. Once the ingredients are combined, mixing the batter until it becomes light and fluffy helps create a better texture. After baking, the cake should be allowed to cool completely before the buttercream is added. This helps the icing stay smooth and prevents it from melting into the cake.

Cake batter in a stand mixer
The cake batter mixes up smoothly and bakes into a soft peanut butter vanilla cake.

Cupcakes Anyone

This recipe also works well as cupcakes. The same peanut butter vanilla batter can be portioned into cupcake liners and topped with the peanut butter buttercream once cooled. Mini peanut butter cups make an easy decoration and add an extra bite of chocolate and peanut butter flavor.

Cupcakes are a great option for parties, showers, baptisms, birthdays, or any event where people want an easy handheld dessert. They are simple to serve, easy to transport, and always popular with peanut butter lovers. Whether baked as a 9 x 13 cake or turned into cupcakes, this recipe has the same sweet, salty, creamy flavor that makes it so satisfying.

Peanut Butter Vanilla Cupcakes
Mini peanut butter cups make a simple and delicious topping for the cupcakes.
Yield: 10 to 12 Cake Servings

Peanut Butter Vanilla Cake Recipe

Peanut Butter Vanilla Cake Recipe

This Peanut Butter Vanilla Cake is a simple dessert made with a doctored-up yellow cake mix and topped with a creamy salted peanut butter buttercream. It is sweet, slightly salty, rich, soft, and perfect with cold milk or a cup of coffee.

Ingredients

  • FOR THE CAKE:
  • 1 box yellow cake mix, 15.25 ounces
  • 3 eggs
  • 1 1/2 cups milk
  • 6 tablespoons butter, melted
  • 1/2 cup creamy peanut butter
  • 1/4 teaspoon salt
  • 1/2 tablespoon vanilla extract
  • FOR THE ICING:
  • 2 sticks butter, softened, 16 tablespoons total
  • 1 cup creamy peanut butter
  • 1/2 tablespoon vanilla extract
  • 1/4 teaspoon salt
  • 3 to 4 cups powdered sugar
  • 10 to 15 mini peanut butter cups

Instructions

  1. In a stand mixer or large mixing bowl, combine the yellow cake mix, eggs, melted butter, milk, salt, vanilla extract, and creamy peanut butter. Mix until combined, then beat on high until the batter is light and fluffy.
  2. Pour the batter into a greased 9 x 13 baking pan or casserole dish. Bake for 25 to 35 minutes, watching closely the first time you make it because ovens can vary. The cake is ready when the center is set.
  3. Remove the cake from the oven and let it cool completely before icing.
  4. To make the icing, add the softened butter to a mixing bowl and beat on high until light and fluffy.
  5. Add the creamy peanut butter, salt, and vanilla extract. Beat again on high until the mixture is smooth and fluffy.
  6. Add the powdered sugar 1/2 cup at a time. Start mixing on low, then increase the speed to whip the icing. Continue adding powdered sugar until the buttercream reaches your preferred texture.
  7. Spread the peanut butter buttercream over the cooled cake. Cut the mini peanut butter cups in half and decorate the top of the cake with them.
  8. To make cupcakes, divide the batter into cupcake liners, bake until set, cool completely, then frost and top each cupcake with a mini peanut butter cup.
© thetipsyhousewife

Finished Peanut Butter Vanilla Cake