Cookie Cake

Quick cookie cake.

===== Ingredients =====
-10tbsp butter
-100g brown sugar
-90g white sugar
-1 egg + 1 yolk
-1tsp vanilla
-290g flour
-3/4 tsp baking soda
-3/4 tsp salt
-chocolate chips

-Optional frosting

===== Instructions =====
1. Cream together sugars and butter.
2. Add in egg, yolk, and vanilla.
3. Add dry ingredients and chocolate chips.
4. Bake in 8-9in pan at 350F for 22-25 minutes.