Peanut Butter Cake with Creamy Frosting – Moist, Rich & Irresistible
Introduction
This cake is a peanut butter lover’s dream. Moist, tender layers infused with creamy peanut butter are topped with a luscious frosting made from butter, cream cheese, and more peanut butter. It’s indulgent yet approachable, perfect for birthdays, potlucks, or any time you want to impress with a homemade dessert.
Why You’ll Love This Recipe
Moist texture: Buttermilk and butter create a tender crumb.
Rich flavor: Peanut butter in both cake and frosting.
Crowd‑pleaser: Familiar yet elevated flavor profile.
Easy method: One saucepan, one bowl, straightforward steps.
Versatile: Works as sheet cake, layered cake, or cupcakes.
Ingredients Breakdown
For the Cake
2 cups flour
2 cups granulated sugar
1 tsp baking soda
¼ tsp salt
¾ cup water
10 tbsp butter
¾ cup creamy peanut butter
2 eggs
¾ cup buttermilk
1½ tsp vanilla extract
For the Frosting
1 stick butter
1 (8 oz) block cream cheese
½–¾ cup creamy peanut butter
2 cups powdered sugar
1 tsp vanilla extract
Step‑by‑Step Instructions
Preheat oven: 350°F (175°C). Grease and flour or spray an 11×13 pan.
Mix dry ingredients: Whisk flour, sugar, baking soda, and salt in a large bowl.
Heat wet base: Combine water and butter in a saucepan, heat until butter melts.
Add peanut butter: Whisk into melted mixture until smooth. Cool 10–15 minutes.
Combine: Stir dry mixture into wet, then add eggs, buttermilk, and vanilla. Mix gently.
Bake: Pour into pan, bake 30 minutes until toothpick comes out clean. Cool completely.
Make frosting: Beat butter, cream cheese, and peanut butter until creamy. Add powdered sugar gradually, then vanilla. Adjust consistency with milk if needed.
Frost cake: Spread evenly over cooled cake.
Pro Tips
Use creamy peanut butter: Natural peanut butter may alter texture.
Don’t overmix: Keeps cake tender.
Cool cake fully: Prevents frosting from melting.
Adjust frosting sweetness: Taste as you add powdered sugar.
Decorate: Sprinkle chopped peanuts or drizzle chocolate.
Variations
Chocolate swirl: Add cocoa powder to frosting.
Layered cake: Bake in round pans, stack with frosting.
Cupcakes: Divide batter into liners, bake 18–20 minutes.
Peanut butter & jelly: Spread jam between cake layers.
Nutty crunch: Fold chopped peanuts into batter.
Serving Suggestions
Serve with cold milk or hot coffee.
Pair with vanilla ice cream.
Present on a cake stand for elegance.
Garnish with peanut butter cups for fun.
Baking Science Corner
Buttermilk: Adds acidity, reacts with baking soda for lift.
Butter + peanut butter: Provide richness and flavor.
Cream cheese frosting: Balances sweetness with tang.
Powdered sugar: Creates smooth, spreadable texture.
Storage & Make‑Ahead
Room temp: Keeps 2 days.
Fridge: Store up to 5 days.
Freezer: Freeze slices up to 2 months.
Make‑ahead: Bake cake a day early, frost before serving.
Final Thoughts
This Peanut Butter Cake with Peanut Butter Frosting is moist, rich, and indulgent. With its tender crumb and creamy topping, it’s a dessert that feels both nostalgic and luxurious.