Peanut Butter Cake

User Reviews

3.6

3,699 reviews
Good
  • Prep Time

    25 mins

  • Cook Time

    25 mins

  • Total Time

    1 hr 5 mins

  • Servings

    24 servings

  • Calories

    343 kcal

  • Course

    Dessert

  • Cuisine

    American

Peanut Butter Cake

An old fashioned peanut butter sheet cake with a crazy good warm peanutty frosting!

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Ingredients

Servings
  • 2 cups all purpose flour
  • 2 cups granulated sugar
  • 1 tsp baking soda
  • 1 tsp salt
  • 1/2 cup unsalted butter
  • 1 cup water
  • 1/2 cup creamy peanut butter Note: I used regular peanut butter for this recipe, 'natural'peanut butter does not work as well.
  • 1/2 cup vegetable oil
  • 2 large eggs room temperature
  • 1/2 cup buttermilk room temperature
  • 1 tsp vanilla extract

frosting

  • 1/2 cup unsalted butter
  • 1/2 cup creamy peanut butter
  • 6 Tbsp buttermilk, you might need a touch more if your frosting is too stiff
  • 1 tsp vanilla extract
  • 3 cups confectioner's sugar sifted

garnish

  • 1/2 cup roasted peanuts

Instructions

  1. Preheat oven to 350F and spray a 9x13 pan with nonstick spray.
  2. Whisk together the flour, sugar, baking soda, and salt in a medium bowl and set aside.
  3. Heat the butter and water in a medium/large saucepan until it comes to a boil. Take off the heat and whisk in the peanut butter and oil until smooth. Let cool for a few minutes, then whisk in the eggs, buttermilk, and vanilla until well blended.
  4. Add the dry ingredients to the wet ingredients, and whisk until just combined.
  5. Pour the batter into the prepared pan and bake for 40-45 minutes, until the top is golden and a toothpick inserted in the center comes out clean. Set the cake on a cooling rack while you make the frosting.
  6. To make the frosting, put the butter, peanut butter, and buttermilk in a saucepan and bring to a full boil. Take off the heat and beat in the vanilla and powdered sugar, adding a cup at a time, until the frosting is smooth. I like to put it back on a gentle heat just to rewarm it, stirring constantly, before pouring over the cake. Note: if your frosting is very stiff and not pourable, add a little bit more buttermilk to thin it out.
  7. Pour the hot frosting over the warm cake, working quickly because the frosting sets up immediately. Spread evenly over cake.
  8. Garnish with peanuts.

Notes

  • Make it chunky!  Yes, of course, go ahead and use chunky PB for this cake.  I would still use smooth for the frosting, but that's your call.

Nutrition Information

Show Details
Calories 343kcal (17%) Carbohydrates 42g (14%) Protein 5g (10%) Fat 18g (28%) Saturated Fat 7g (35%) Trans Fat 1g Cholesterol 15mg (5%) Sodium 297mg (12%) Potassium 103mg (3%) Fiber 1g (4%) Sugar 33g (66%) Vitamin A 373IU (7%) Vitamin C 1mg (1%) Calcium 22mg (2%) Iron 1mg (6%)

Nutrition Facts

Serving: 24servings

Amount Per Serving

Calories 343 kcal

% Daily Value*

Calories 343kcal 17%
Carbohydrates 42g 14%
Protein 5g 10%
Fat 18g 28%
Saturated Fat 7g 35%
Trans Fat 1g 50%
Cholesterol 15mg 5%
Sodium 297mg 12%
Potassium 103mg 2%
Fiber 1g 4%
Sugar 33g 66%
Vitamin A 373IU 7%
Vitamin C 1mg 1%
Calcium 22mg 2%
Iron 1mg 6%

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

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Overall Rating

3.6

3,699 reviews
Good

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