Peanut Butter Texas Sheet Cake

User Reviews

5

14 reviews
Excellent
  • Prep Time

    20 mins

  • Cook Time

    20 mins

  • Total Time

    40 mins

  • Servings

    24

  • Calories

    348 kcal

  • Course

    Dessert

  • Cuisine

    American

Peanut Butter Texas Sheet Cake

The Peanut Butter Texas Sheet Cake is a moist, single-layer sheet cake combining chocolate and peanut butter flavors. The batter includes a mix of water, butter, and peanut butter melted together, then combined with sugar, eggs, flour, and buttermilk, creating a tender crumb with a peanut-infused richness. The cake is baked in a large sheet pan and topped while warm with a creamy peanut butter icing that’s balanced with brown sugar and vanilla, offering a sweet, smooth finish.

Description

The Peanut Butter Texas Sheet Cake brings together the classic dense, moist texture of Texas sheet cakes with a peanut butter twist. Beginning with a blend of melted butter, peanut butter, sugar, and water as the base, the batter incorporates eggs, baking soda, salt, flour, and buttermilk to achieve a rich, tender crumb. The peanut butter in both the cake and icing ensures a consistent nutty flavor that is neither overpowering nor too mild.

Baked in a generously greased large sheet pan, the cake cooks for 20 to 25 minutes until a toothpick comes out clean and the surface feels firm yet springy. The icing combines butter, peanut butter, dark brown sugar, buttermilk, vanilla, and powdered sugar, creating a creamy, spreadable frosting that melts slightly when applied to the warm cake. This icing adds depth and moisture while enhancing the peanut butter intensity.

This cake suits gatherings where a generously-sized dessert is needed, or any occasion where a classic moist sheet cake with a nutty twist is desired. Its balance of flavors pairs well with coffee or glass of milk. The recipe instructions note the importance of cooling the cake slightly before applying the icing to allow for easy spreading without melting the frosting completely.

Adapted and refined from tested sources, tips emphasize careful ingredient blending and proper preparation of the baking pan to prevent sticking. The cake can be cut into squares and stored covered to maintain softness.

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Ingredients

Servings

For the cake:

  • 1 cup water
  • 1 cup butter 2 sticks
  • ½ cup peanut butter
  • 2 cups sugar
  • 1 teaspoon vanilla extract
  • 2 egg large
  • 1 teaspoon baking soda
  • ¼ teaspoon salt
  • 2 cups all-purpose flour
  • ½ cup buttermilk

For the icing:

  • ½ cup butter 1 stick
  • ¼ cup peanut butter creamy
  • ½ cup dark brown sugar
  • 4-6 tablespoon buttermilk (or half and half or milk)
  • 1 teaspoon vanilla extract
  • 3½-4 cups powdered sugar

Instructions

For the cake:

  1. Preheat the oven to 350˚F. Generously spray a 12x18-inch sheet pan with baking spray OR rub with shortening then add a tablespoon of flour and tilt the pan in all directions to coat the shortening with flour.
  2. Combine water, butter and peanut butter in a medium-large, microwave-safe bowl. Cook on high power for 2-2½ minutes or until the butter is melted. Add the sugar and vanilla, then whisk until well combined. Set aside for 5 minutes to cool.
  3. Add the eggs and whisk until smooth then add the baking soda and salt. Whisk until well combined.
  4. Add the flour, whisking vigorously until lump-free then add the buttermilk and stir until well combined.
  5. Pour the batter into the prepared pan and smooth to an even layer. Bake for 20-25 minutes, until a toothpick inserted in the center, comes out clean and the top feels firm and springs back lightly when touched.
  6. Cool for 20 minutes then top with the icing. Spread the icing with a knife to cover the surface. If desired, swirl the icing with the back of a small spoon for a pretty presentation. Serve warm or at room temperature.

For the icing:

  1. Combine the butter, dark brown sugar and peanut butter in a medium-large microwave-safe bowl. Cook on high power for 1 minute. Whisk well then return to the microwave for another minute.
  2. Add 4 tablespoons of the buttermilk (or half and half or milk) and vanilla. Whisk well to combine. Add 3½ cups of powdered sugar and whisk until smooth. You’re looking for a fairly thick but still pourable icing. If too thick, add a bit more buttermilk. If too thin, add a little more powdered sugar and stir again until nice and smooth.

Notes

  • Ensure the baking pan is well-prepared with baking spray or a flour-and-shortening coating to prevent sticking.
  • Cool the cake slightly before spreading the peanut butter icing so it adheres well but does not melt completely.
  • This recipe yields a large sheet cake, ideal for serving 12-16 people at gatherings or potlucks.
  • Adapted from My Recipes with customized icing for enhanced peanut butter flavor.

Nutrition Information

Show Details
Calories 348kcal (17%) Carbohydrates 49g (16%) Protein 4g (8%) Fat 16g (25%) Saturated Fat 8g (40%) Cholesterol 45mg (15%) Sodium 224mg (9%) Potassium 87mg (2%) Fiber 1g (4%) Sugar 39g (78%) Vitamin A 387IU (8%) Calcium 23mg (2%) Iron 1mg (6%)

Nutrition Facts

Serving: 24Serving

Amount Per Serving

Calories 348 kcal

% Daily Value*

Calories 348kcal 17%
Carbohydrates 49g 16%
Protein 4g 8%
Fat 16g 25%
Saturated Fat 8g 40%
Cholesterol 45mg 15%
Sodium 224mg 9%
Potassium 87mg 2%
Fiber 1g 4%
Sugar 39g 78%
Vitamin A 387IU 8%
Calcium 23mg 2%
Iron 1mg 6%

* Percent Daily Values are based on a 2,000 calorie diet.

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5

14 reviews
Excellent

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