Ingredients
Method
Prepare the Cookie Cake Base
- Preheat the oven to 350°F (175°C) and grease a 9x13 inch baking pan.
- In a mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy.
- Add the eggs one at a time, mixing well after each addition, then stir in the vanilla extract.
- In a separate bowl, whisk together the flour, baking soda, and salt.
- Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Fold in the chocolate chips or sprinkles.
- Spread the cookie dough evenly into the prepared baking pan.
- Bake for 20-25 minutes or until the edges are golden brown and a toothpick inserted in the center comes out clean.
- Allow to cool completely in the pan on a wire rack.
Prepare the Frosting
- In a mixing bowl, beat the softened butter until creamy.
- Gradually add the powdered sugar, mixing on low speed until combined.
- Add the milk and vanilla extract, then beat on high speed until fluffy and smooth.
Assemble the Cake
- Once the cookie cake has cooled, spread the frosting evenly over the top.
- Decorate with additional chocolate chips or sprinkles if desired.
- Cut into squares and serve for a festive birthday celebration.
Nutrition
Notes
Store any leftovers in an airtight container at room temperature for up to 3 days.