Peanut Butter Sheet Cake

Total Time Prep: 15 min. Bake: 20 min.
Yield 24 servings
Test Kitchen Approved
Potluck-perfect peanut butter sheet cake takes less than an hour to bake and is practically guaranteed to be a hit.

Ingredients

  • 2 cups all-purpose flour
  • 2 cups sugar
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 cup water
  • 3/4 cup butter, cubed
  • 1/2 cup chunky peanut butter
  • 1/4 cup canola oil
  • 2 large eggs, room temperature
  • 1/2 cup buttermilk
  • 1 teaspoon vanilla extract
  • GLAZE:
  • 2/3 cup sugar
  • 1/3 cup evaporated milk
  • 1 tablespoon butter
  • 1/3 cup chunky peanut butter
  • 1/3 cup miniature marshmallows
  • 1/2 teaspoon vanilla extract

Directions

  1. Preheat oven to 350°. Grease a 15x10x1-in. baking pan.
  2. In a bowl, whisk flour, sugar, baking soda and salt. In a saucepan, combine water and butter; bring just to a boil. Stir in peanut butter and oil until blended. Stir four mixture into peanut butter mixture. In a small bowl, whisk eggs, buttermilk and vanilla until blended; add to flour mixture, whisking constantly.
  3. Transfer to prepared pan. Bake until a toothpick inserted in center comes out clean, 20-25 minutes.
  4. Meanwhile, for glaze, combine sugar, evaporated milk and butter in a saucepan. Bring to a boil, stirring constantly; cook and stir 2 minutes. Remove from heat; stir in peanut butter, marshmallows and vanilla until blended. Spoon over warm cake, spreading evenly. Cool on a wire rack.

Nutrition Facts

1 piece: 266 calories, 14g fat (5g saturated fat), 36mg cholesterol, 222mg sodium, 33g carbohydrate (23g sugars, 1g fiber), 4g protein.

I received this recipe from a minister's wife, and my family loves it. —Brenda Jackson, Garden City, Kansas
Recipe Creator

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