Preheat oven to 375.
In a stand mixer, cream together the butter and both sugars until light and fluffy. About 3 minutes.
Add in the eggs and mix until combined.
Add in the flour, cake flour, oats, baking powder, baking soda, and salt. Mix until the flour is almost incorporated.
Add in all the chocolate chips and mix a few more seconds.
Divide cookie dough into 9 large balls.
If time allows, chill dough balls in refrigerator for 15 minutes.
Bake dough balls at 375 for 14-15 minutes - until the edges are golden brown.