Description
This Peanut Butter Cake with Peanut Butter Frosting is a rich, moist sheet cake packed with creamy peanut butter flavor and topped with a thick, fudge-like frosting. It’s an easy crowd-pleaser perfect for gatherings or whenever your sweet tooth needs something nostalgic and comforting.
Ingredients
1 cup creamy peanut butter
1/2 cup unsalted butter, softened
1 cup brown sugar
1/2 cup granulated sugar
2 large eggs
1 teaspoon vanilla extract
1 1/2 cups all-purpose flour
1 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
1 cup milk
1/2 cup creamy peanut butter
1/2 cup unsalted butter, softened
2 cups powdered sugar
2 to 3 tablespoons milk
1/4 cup chopped salted peanuts
Instructions
1. Preheat oven to 350°F (175°C). Grease a 9×13-inch baking pan and set aside.
2. In a large bowl, cream together 1/2 cup butter and 1 cup peanut butter until fluffy.
3. Add brown sugar and granulated sugar. Beat until well combined.
4. Mix in eggs one at a time, then stir in vanilla extract and milk.
5. In a separate bowl, whisk together flour, baking powder, baking soda, and salt.
6. Gradually add dry ingredients to the wet mixture, stirring until just combined.
7. Pour batter into prepared pan and smooth the top.
8. Bake for 30–35 minutes, or until a toothpick inserted in the center comes out clean. Let the cake cool completely.
9. For the frosting, beat 1/2 cup peanut butter and 1/2 cup butter together until creamy.
10. Slowly add powdered sugar and milk until thick, smooth, and spreadable.
11. Frost the cooled cake evenly.
12. Top with chopped salted peanuts if desired. Slice and serve!
Notes
Bring ingredients to room temperature for smoother mixing and a more even bake.
Don’t overmix the batter once you add the dry ingredients—this keeps the cake soft.
If your frosting is too thick, add a little more milk 1 tablespoon at a time.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 490
- Sugar: 39g
- Sodium: 260mg
- Fat: 29g
- Saturated Fat: 10g
- Unsaturated Fat: 17g
- Trans Fat: 0g
- Carbohydrates: 50g
- Fiber: 2g
- Protein: 8g
- Cholesterol: 55mg