Preheat the oven to 350 degrees Fahrenheit. Spray a 9 inch round cake pan with a non-stick baking spray.
In a large mixing bowl, stir together ½ cup melted butter, 1 yellow cake mix, and 2 large eggs until just combined.
Stir in 1 cup chocolate chips.
Press the cookie dough batter into the prepared pan.
Bake for 20–25 minutes or until the edges are just starting to turn slightly golden brown. Be careful not to overcook. It’s better to slightly undercook the cookie dough than over bake it since the cake will continue to cook as it cools.
Let the cake cool completely before adding the frosting.
For the Frosting:
Beat ¼ cup softened unsalted butter with a hand held mixer until smooth.
Slowly add in 1 ½ cups powdered sugar and 3 tablespoons unsweetened cocoa powder.
Mix in 1 teaspoon vanilla extract and slowly add in 2 tablespoons milk until the frosting is creamy.
Pipe the frosting with a star tip onto the edges of the cookie cake and top with ½ cup multi-colored sprinkles.
Then the cake is ready to slice, serve and enjoy!
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Notes
This cake can be made in a 9 inch pie pan as well. Make sure not to over mix the cookie dough or the cookie cake will be tough. Recipe Tips
Cooking Time - Be careful not to overcook. It’s better to under cook the cookie dough than over bake it as the cake will continue to cook as it cools. Insert a toothpick to check to see if the cookie is finished baking. If it comes out clean, then it is ready to be served.
Frosting Cake - Let the cake cool completely at room temperature before adding the frosting.
Variations Ideas
Change the Cake Mix - Feel free to change the cake mix to what you prefer. You can try this recipe with lemon cake mix, strawberry cake mix, red velvet, and vanilla cake mix. The options are endless.
Chocolate Chips - You can also change the chocolate chips to white chocolate chips, semi-sweet chocolate chips, butterscotch chips, or dark chocolate chips.
Frosting - Frost the cake with a cream cheese frosting or a buttercream frosting. Both are great options for this easy dessert recipe.