Ingredients
Equipment
Method
- Preheat oven to 350°F (175°C). Grease an 11-inch cookie cake pan and optionally line with parchment paper. ([wiamrecipes.com](https://wiamrecipes.com/homemade-cookie-cake-recipe/))
- Finely chop ½ cup of the chocolate chips; set aside the remaining ½ cup whole chips. ([wiamrecipes.com](https://wiamrecipes.com/homemade-cookie-cake-recipe/))
- In a large bowl, combine melted butter with brown sugar and granulated sugar; stir until fully combined. ([wiamrecipes.com](https://wiamrecipes.com/homemade-cookie-cake-recipe/))
- Add the egg and vanilla extract, stirring until smooth. ([wiamrecipes.com](https://wiamrecipes.com/homemade-cookie-cake-recipe/))
- Mix in baking soda, baking powder, and salt, then gradually add flour and stir until just combined. ([wiamrecipes.com](https://wiamrecipes.com/homemade-cookie-cake-recipe/))
- Fold in both chopped and whole chocolate chips; avoid overmixing. ([wiamrecipes.com](https://wiamrecipes.com/homemade-cookie-cake-recipe/))
- Drop small chunks of dough into the prepared pan and press evenly into a smooth layer ensuring the dough reaches all corners. ([wiamrecipes.com](https://wiamrecipes.com/homemade-cookie-cake-recipe/))
- Bake for 12–14 minutes until the edges are lightly golden and the center remains slightly soft for a chewy cookie texture. ([wiamrecipes.com](https://wiamrecipes.com/homemade-cookie-cake-recipe/))
- Remove from oven and allow the cookie cake to cool completely in the pan. ([wiamrecipes.com](https://wiamrecipes.com/homemade-cookie-cake-recipe/))
- Make the frosting: beat softened butter until creamy, then gradually add powdered sugar, vanilla extract, salt, and milk until smooth. ([wiamrecipes.com](https://wiamrecipes.com/homemade-cookie-cake-recipe/))
- Decorate the cooled cookie cake with frosting using a star piping tip if desired and immediately add sprinkles. ([wiamrecipes.com](https://wiamrecipes.com/homemade-cookie-cake-recipe/))
Notes
For best texture, avoid overmixing once flour is added. Let the cookie cake cool completely before decorating. Store in an airtight container at room temperature up to 3–4 days. Serve with ice cream or fresh fruit if desired. ([wiamrecipes.com](https://wiamrecipes.com/homemade-cookie-cake-recipe/))
