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Test Kitchen Approved

Chocolate Chip Sheet Cake

Time: 50 minutes

Yield: 15 servings

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About

This Chocolate Chip Sheet Cake is so chocolatey, so moist, so sweet, that a certain blue, cookie-loving monster might just give up his most favorite handheld treat for this one! Once you taste this yummy, vanilla, chocolate-chip-scattered cake, you'll understand his quick change of heart. And the creamy, fluffy chocolate frosting topped with even more rich chocolate chips will have you saying, "om, nom, nom, nom." C is no longer for cookie, but instead for Chocolate Chip Sheet Cake, and that's more than good enough for us!

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Ingredients

  • For the cake:
  • 8 tablespoons unsalted butter, softened and cut into 8 pieces
  • 1 1/4 cups granulated sugar
  • 1 large egg, room temperature
  • 2 teaspoons vanilla extract
  • 1 1/4 cups buttermilk
  • 2 cups all-purpose flour
  • 1 1/2 teaspoons baking powder
  • 1/4 teaspoon baking soda
  • 3/4 teaspoon salt
  • 1 cup mini chocolate chips
  • For the frosting:
  • 1 cup unsalted butter, softened
  • 3 1/2 cups powdered sugar
  • 1 1/2 teaspoons vanilla extract
  • 1/8 teaspoon table salt
  • 1-2 tablespoons heavy cream, plus more if needed
  • 1/2 cup cocoa powder, optional
  • 1/4 cup mini chocolate chips, for topping

Directions

Step 1 -Preheat the oven to 350 degrees F.

Step 2 -Spray a 10x15-inch jellyroll pan with baking spray.

Step 3 -In a large bowl, beat 8 tablespoons of the butter and the granulated sugar with an electric mixer until well-combined.

Step 4 -Add the egg and 2 teaspoons of the vanilla extract to the butter mixture and mix well.

Step 5 -With the mixer on low speed, slowly beat the buttermilk into the butter mixture until completely combined.

Step 6 -In a separate bowl, whisk the flour, the baking soda, the baking powder, and 3/4 teaspoon of the salt together.

Step 7 -Add the dry ingredients mixture to the wet ingredients mixture and use a spatula to gently fold together until the batter is approximately 75% of the way combined.

Step 8 -Add 1 cup of the mini chocolate chips into the batter, and stir until they are evenly distributed and the batter is completely combined.

Step 9 -Evenly spread the batter into the prepared baking pan.

Step 10 -Bake until a toothpick or fork inserted into the center comes out clean or with moist crumbs, about 25-30 minutes.

Step 11 -Allow the cake to cool completely.

Step 12 -While the cake cools, add the remaining butter to a large bowl and beat with an electric mixer until creamy.

Step 13 -Gradually add the powdered sugar into the butter mixture, stirring with a spatula until combined.

Step 14 -Add the remaining vanilla extract, the remaining salt, and 1 tablespoon of the heavy cream to the butter mixture and beat with the electric mixer until thoroughly combined. Be sure to use a spatula to scrape the sides and the bottom of the bowl. If the frosting is too thick to spread, add more of the heavy cream.

Step 15 -If you prefer a chocolate frosting, add the cocoa powder to the frosting mixture and stir with a spatula until combined. You may need to add an additional tablespoon of the heavy cream after this.

Step 16 -Evenly spread the icing over the cooled cake and sprinkle with the remaining chocolate chips.

Step 17 -Slice and serve.

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