Preheat oven to 350°. In a KitchenAid stand mixer, beat together butter and sugar until creamed completely (roughly 3-5 minutes).
Add in vanilla extract and eggs and mix together again.
Add all of the dry ingredients into the bowl: flour, baking powder, and salt. Mix together until dough forms and all of the flour is absorbed.
Pour in mini chocolate chips and stir briefly until they’re combined.
Pour the batter into the greased, parchment lined baking sheet and spread so it’s an even thickness all the way to the edges.
Bake for 11-14 minutes or until the edges turn golden brown. Do not over bake.
Once your cookie cake is completely cooled, add frosting to a piping bag and frost any way you'd like! Enjoy