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–+ servings
Plate with three pieces of peanut butter sheet cake with peanut butter icing.

Peanut Butter Texas Sheet Cake

This easy and peanut buttery cake is perfect for feeding a crowd. It is made much like a Texas sheet cake and is great with peanut butter icing. It is also great with chocolate icing, or white chocolate buttercream.
Prep Time10 minutes
Cook Time25 minutes
Total Time35 minutes
Servings: 24 Servings
Author: Carlee

Ingredients

Cake

  • 2½ cups all purpose flour
  • 2 cups granulated sugar
  • ¼ teaspoon salt
  • 1 teaspoon baking soda
  • ½ cup milk
  • 1 teaspoon vinegar
  • 1 cup butter
  • ⅔ cup peanut butter
  • 1 cup hot water
  • 2 large eggs
  • 1 teaspoon vanilla extract

Peanut Butter Icing

  • ¾ cup butter
  • 6 Tablespoons milk
  • ½ cup creamy peanut butter
  • 3½ cups powdered sugar
  • 2 teaspoons vanilla extract
Makes: 13 x 18inch rectangle, 1inch height

Instructions

Cake

  • Preheat oven to 350°F
  • In a large bowl, mix together 2½ cups all purpose flour, 2 cups granulated sugar, ¼ teaspoon salt, and 1 teaspoon baking soda.
  • In a small bowl, mix together ½ cup milk and 1 teaspoon vinegar.
  • In a saucepan, melt 1 cup butter over low heat. Stir in ⅔ cup peanut butter until smooth and melted. Mix in 1 cup hot water, bring to a bubble and remove from heat.
  • Stir the 2 large eggs and 1 teaspoon vanilla extract into the milk mixture.
  • Add hot peanut butter mixture to flour mixture and stir until just barely mixed. Stir in milk mixture and continue to stir until just incorporated.
  • Spread into a greased 13x18x1-inch half sheet pan and bake at 350°F for 25 minutes.

Icing

  • Add ¾ cup butter, 6 Tablespoons milk, and ½ cup creamy peanut butter to a medium saucepan. Bring to a boil, while stirring.
  • Remove from heat and whisk in 3½ cups powdered sugar and 2 teaspoons vanilla extract.
  • Pour warm frosting over warm cake, using a spatula to spread it evenly. It should be thin enough to spread easily while it is warm. The frosting will set as it cools.

Notes

We also love this cake with white chocolate buttercream or chocolate frosting. 

Nutrition

Serving: 1piece | Calories: 385kcal | Carbohydrates: 47g | Protein: 5g | Fat: 21g | Saturated Fat: 10g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 7g | Trans Fat: 1g | Cholesterol: 50mg | Sodium: 239mg | Potassium: 108mg | Fiber: 1g | Sugar: 36g | Vitamin A: 448IU | Calcium: 25mg | Iron: 1mg
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