Preheat your oven to 350°F (175°C). Grease and line a 9-inch round cake pan with parchment paper.

In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until smooth and fluffy.

Add the eggs one at a time, beating well after each addition. Stir in the vanilla extract.

In a separate bowl, whisk together the all-purpose flour, baking soda, baking powder, and salt.

Gradually add the dry ingredients to the wet mixture, mixing until just combined.

Fold in the semi-sweet chocolate chips until evenly distributed.

Transfer the cookie dough to the prepared cake pan, spreading it out evenly. Smooth the top with a spatula.

Bake in the preheated oven for 25-30 minutes, or until the edges are golden brown and a toothpick inserted in the center comes out clean.

Allow the cookie cake to cool in the pan for about 10 minutes, then transfer it to a wire rack to cool completely.

Optional: Sprinkle mini chocolate chips on top for garnish before serving.