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The Ultimate Chewy Chocolate Chip Cookie Cake with Simple Vanilla Buttercream

A thick slice of chocolate chip cookie cake recipe layered with white frosting and topped with mini chocolate chips.
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Bake this foolproof, giant chocolate chip cookie cake from scratch. It is chewy, buttery, and perfect for birthdays or any celebration. Top it with a simple homemade vanilla buttercream frosting.

Ingredients

Scale
  • 1 cup (2 sticks) unsalted butter, softened
  • 1 cup packed light brown sugar
  • 1/2 cup granulated sugar
  • 2 large eggs
  • 1 tablespoon vanilla extract
  • 2 1/4 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 1/2 cups semi-sweet chocolate chips
  • 1 cup vanilla buttercream frosting ingredients (listed separately below)

Instructions

  1. Preheat your oven to 350°F (175°C). Grease and flour a 12-inch round cake pan or a 10×15 inch rimmed baking sheet for a sheet pan cookie cake.
  2. In a large bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy. This step helps create a chewy texture.
  3. Beat in the eggs one at a time, then mix in the vanilla extract.
  4. In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Do not overmix.
  5. Fold in the chocolate chips by hand.
  6. Press the cookie dough evenly into your prepared pan.
  7. Bake for 20 to 25 minutes for a round pan, or 25 to 30 minutes for a sheet pan, or until the edges are golden brown but the center still looks slightly soft. This ensures a chewy cookie cake.
  8. Let the cookie cake cool completely in the pan on a wire rack before frosting.
  9. Prepare the frosting: Beat 1/2 cup softened butter, 3 cups powdered sugar, 1 teaspoon vanilla extract, and 2-3 tablespoons of milk until smooth and creamy. Add more milk if needed to reach a spreadable consistency.
  10. Spread the vanilla buttercream evenly over the cooled cookie cake. Decorate with extra chocolate chips or sprinkles for a birthday cookie cake look.

Notes

  • For an extra chewy cookie cake, slightly underbake it by about 2 minutes. The residual heat will finish the cooking process as it cools.
  • If you are making a sheet pan cookie cake, you can easily double the recipe for a crowd.
  • Use high-quality chocolate chips; they melt better and taste superior.
  • This recipe is a fantastic base; swap chocolate chips for M&Ms or nuts for variations.

Nutrition

Find it online: https://carlacooking.com/cookie-cake-recipe-foolproof-joy/