Peanut Butter Sheet Cake

Indulge in the delightful richness of this Peanut Butter Sheet Cake, a perfect dessert for any occasion! This moist, flavorful cake is packed with peanut butter goodness and topped with a creamy frosting that takes it over the top. Whether you’re hosting a gathering or simply want to treat yourself, this sheet cake is sure to be a hit.

Nutritional Benefits

Peanut Butter: A great source of protein and healthy fats, peanut butter can help keep you satisfied.
Whole Ingredients: The use of buttermilk adds moisture and a subtle tang to the cake while providing some calcium.
Versatile: This cake can be enjoyed as a dessert or even as a special breakfast treat.

Ingredients 📋

For the Cake:

2 cups all-purpose flour
2 cups granulated sugar
1 teaspoon baking soda
½ teaspoon salt
1 cup water
½ cup unsalted butter
½ cup creamy peanut butter
½ cup vegetable oil
2 large eggs
½ cup buttermilk
1 teaspoon vanilla extract

For the Frosting:

½ cup unsalted butter, softened
½ cup creamy peanut butter
6 tablespoons milk (more as needed)
3½ cups powdered sugar
1 teaspoon vanilla extract

Instructions 🥣

Step 1: Prepare the Cake

Preheat the Oven: Preheat your oven to 350°F (175°C) and grease a 10×15-inch baking pan with cooking spray or butter to prevent sticking.
Mix the Dry Ingredients: In a large mixing bowl, combine the flour, granulated sugar, baking soda, and salt. Whisk until well combined and set aside.
Boil the Wet Ingredients: In a medium saucepan, combine the water, butter, peanut butter, and vegetable oil. Bring to a boil over medium heat, stirring occasionally until the mixture is smooth.
Combine Mixtures: Pour the hot mixture into the bowl with the dry ingredients. Mix well to combine.
Add Remaining Ingredients: Beat in the eggs, buttermilk, and vanilla extract until the batter is smooth and well incorporated.
Bake the Cake: Pour the batter into the prepared baking pan, spreading it evenly. Bake in the preheated oven for 20-25 minutes, or until a toothpick inserted in the center comes out clean. The cake should be springy to the touch and golden around the edges.

Step 2: Prepare the Frosting

Make the Frosting: In a medium saucepan over low heat, melt the butter and peanut butter together until smooth. Remove from heat and stir in the milk.
Mix the Sugar: Gradually add the powdered sugar and vanilla extract, mixing until smooth. If the frosting is too thick, add more milk a tablespoon at a time until it reaches your desired consistency.

Step 3: Frost the Cake

Spread the Frosting: Once the cake has cooled slightly (about 10-15 minutes), spread the warm frosting generously over the top. The warmth of the cake will help the frosting melt slightly, creating a deliciously gooey layer.
Serve and Enjoy: Allow the cake to cool completely before slicing into squares. This cake is perfect for potlucks, family gatherings, or simply as a sweet treat at home.

Serving Suggestions

Serve warm or at room temperature, and enjoy it with a glass of cold milk for the ultimate peanut butter experience.
For an extra touch, consider topping the frosting with chopped peanuts or drizzling chocolate over the top.

Why You’ll Love This Recipe

This Peanut Butter Sheet Cake is not just a dessert; it’s an experience! The combination of moist cake and creamy frosting delivers a burst of peanut butter flavor in every bite. It’s easy to prepare, serves a crowd, and is perfect for any peanut butter lover. You’ll find yourself going back for seconds (and thirds) because it’s simply irresistible!

Prep Time: 15 minutes
Bake Time: 25 minutes
Total Time: 40 minutes
Servings: 12-16 squares