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Why is this peanut butter cake recipe “fun?” Well, you’ll just have to make it to find out.


16 Servings

Chocolate Cake

Nonstick vegetable oil spray


1/4 cups all-purpose flour


cup sugar


/4 cup natural unsweetened cocoa powder


1/2 teaspoons kosher salt


teaspoon baking soda


/4 cup vegetable oil


teaspoon vanilla extract


/2 cup finely chopped semisweet or bittersweet chocolate (3 1/2 ounces)

Peanut Butter Buttercream


/2 cup sugar


/4 cup egg whites (from about 2 large eggs)


1/2 teaspoons vanilla extract


/4 cup creamy peanut butter


tablespoons (3/4 stick) chilled unsalted butter, cut into 1/4-inch cubes

Kosher salt


/4 cup chopped semisweet or bittersweet chocolatet(about 1 3/4 ounces)


/4 cup chopped unsalted, dry-roasted peanuts


  1. Chocolate Cake

    Step 1

    Preheat oven to 350°. Coat bottom and sides of 8x8x2-inch pan with nonstick spray; line bottom of pan with parchment paper. Whisk flour and next 4 ingredients in a large bowl. Add oil, vanilla, and 1 1/4 cups water; whisk until smooth. Fold in chopped chocolate. Scrape into prepared pan; smooth top. Bake until a tester comes out clean when inserted into center, 35–40 minutes. Let cool completely in pan on a wire rack.

  2. Peanut Butter Buttercream

    Step 2

    Combine sugar and egg whites in a medium metal bowl set over a saucepan of simmering water. Whisk constantly until sugar dissolves and mixture is hot to the touch, 3–4 minutes. Remove from heat; using an electric mixer, beat on high speed until cool and thick, 5–6 minutes. Beat in vanilla, then peanut butter. With mixer running, add butter a few pieces at a time, beating to blend between additions. Season with salt.

    Step 3

    Run a thin knife around pan to release cake. Invert cake onto a serving plate. Spread peanut butter buttercream over top. Garnish with chopped chocolate and peanuts. DO AHEAD: Can be made 1 day ahead. Store airtight at room temperature.

    Step 4

    Cut into 2-inch squares.

Nutrition Per Serving

One serving contains: Calories (kcal) 260.7 %Calories from Fat 47.1 Fat (g) 13.7 Saturated Fat (g) 5.2 Cholesterol (mg) 11.3 Carbohydrates (g) 34.5 Dietary Fiber (g) 2.6 Total Sugars (g) 24.1 Net Carbs (g) 31.9 Protein (g) 4.1 Sodium (mg) 324.0

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