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Chocolate Peanut Butter Texas Sheet Cake Easy Family Dessert

Chocolate Peanut Butter Texas Sheet Cake

This Chocolate Peanut Butter Texas Sheet Cake combines the rich flavor of moist chocolate cake with a creamy, luscious peanut butter frosting. It’s the ultimate indulgent dessert for any chocolate and peanut butter lover!
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Prep Time 25 minutes
Cook Time 25 minutes
Total Time 1 hour 20 minutes
Servings: 20 squares
Course: Cake, Dessert
Cuisine: American
Calories: 480
Ingredients Method Notes

Ingredients
  

For the Cake
  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • 0.5 cup unsweetened cocoa powder
  • 1 teaspoon baking soda
  • 0.5 teaspoon salt
  • 1 cup unsalted butter
  • 1 cup water
  • 0.5 cup buttermilk
  • 2 large eggs
  • 2 teaspoons vanilla extract
For the Peanut Butter Frosting
  • 1 cup creamy peanut butter
  • 0.5 cup unsalted butter softened
  • 4 cups powdered sugar
  • 0.25 cup milk
  • 1 teaspoon vanilla extract
For Garnish (optional)
  • chopped peanuts optional
  • chocolate shavings optional

Method
 

  1. Step 1: Preheat the Oven
    Preheat your oven to 350°F (175°C). Grease and flour a large rimmed baking sheet (13x18 inches).
  2. Step 2: Combine Dry Ingredients
    In a large bowl, sift together the flour, sugar, cocoa powder, baking soda, and salt.
  3. Step 3: Melt Butter and Combine
    In a saucepan, melt butter with water over medium heat. Bring to a boil, then carefully pour into the dry ingredients. Mix until well combined.
  4. Step 4: Add Wet Ingredients
    Add buttermilk, eggs, and vanilla extract to the batter. Stir until smooth and glossy.
  5. Step 5: Bake the Cake
    Pour the batter into the prepared baking sheet and spread evenly. Bake for 20–25 minutes, or until a toothpick inserted in the center comes out clean.
  6. Step 6: Cool the Cake
    Allow the cake to cool in the pan for about 30 minutes before frosting.
  7. Step 7: Prepare the Frosting
    In a mixing bowl, beat together peanut butter and softened butter until creamy. Gradually add powdered sugar, alternating with milk, and mix until smooth. Stir in vanilla extract.
  8. Step 8: Frost and Garnish
    Spread frosting generously over the cooled cake. Garnish with chopped peanuts or chocolate shavings, if desired.

Notes

This cake is perfect for feeding a crowd and can be made a day ahead. Store covered at room temperature for up to 2 days or refrigerate for up to 5 days. For an extra indulgence, drizzle melted chocolate or warm fudge over the frosting before serving.