Description
This classic Peanut Butter Cake Recipe features a moist and rich peanut butter-flavored cake topped with a creamy homemade peanut butter frosting. Perfectly balanced with a hint of sweetness and a tender crumb, this easy-to-make sheet cake is ideal for dessert lovers and pairs wonderfully with milk or coffee.
Ingredients
Scale
Cake Ingredients
- 1¾ cups all-purpose flour
- 1 cup granulated sugar
- ½ cup brown sugar (packed)
- 1 teaspoon baking powder
- ½ teaspoon baking soda
- ½ teaspoon salt
- ½ cup creamy peanut butter
- ½ cup unsalted butter (softened)
- 2 large eggs
- 1 teaspoon vanilla extract
- ¾ cup whole milk
- ¼ cup sour cream
Peanut Butter Frosting Ingredients
- ½ cup creamy peanut butter
- ¼ cup unsalted butter (softened)
- 1½ cups powdered sugar
- 2–3 tablespoons milk
- ½ teaspoon vanilla extract
Instructions
- Preheat Oven and Prepare Pan: Preheat your oven to 350°F (175°C). Grease and flour a 9×13-inch baking pan or line it with parchment paper to prevent sticking.
- Combine Dry Ingredients: In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, brown sugar, baking powder, baking soda, and salt ensuring they are evenly mixed.
- Mix in Peanut Butter and Butter: Add the creamy peanut butter and softened unsalted butter to the dry ingredients. Use a mixer or spoon to combine until the mixture has a crumbly texture.
- Add Wet Ingredients: Beat in the eggs one at a time, then add the vanilla extract, whole milk, and sour cream. Mix until the batter is smooth and well incorporated.
- Pour and Bake: Pour the prepared batter into the greased pan and spread it evenly, smoothing the top with a spatula. Place in the preheated oven and bake for 30–35 minutes, or until a toothpick inserted in the center comes out clean.
- Cool the Cake: Remove the cake from the oven and allow it to cool completely in the pan on a wire rack before frosting.
- Prepare Frosting: In a mixing bowl, beat together the peanut butter and softened butter until creamy and smooth.
- Add Remaining Frosting Ingredients: Gradually beat in powdered sugar, then add 2 to 3 tablespoons of milk and vanilla extract. Continue beating until the frosting is fluffy and spreadable.
- Frost the Cake: Spread the prepared peanut butter frosting evenly over the cooled cake, covering the top completely.
- Serve: Slice into 12 servings and enjoy with a glass of cold milk or coffee if desired.
Notes
- For added texture and flavor, fold in ½ cup of chopped peanuts or mini chocolate chips into the cake batter before baking.
- This cake pairs excellently with a cold glass of milk or a cup of fresh coffee.
- Ensure the cake is completely cooled before frosting to prevent the frosting from melting.
- Store leftover cake covered at room temperature for up to 3 days or refrigerate for up to a week.
