Preheat oven to 375.
Mix 3 cups all-purpose flour, 1 tsp baking soda and 1/2 tsp baking power.
Cream 1 cup room temperature butter, 1 cup sugar and 1 cup light brown sugar.
Add 2 eggs and 2 tsp vanilla extract to butter.
Add dry ingredients to wet.
Add 3 cups chocolate chips.
Roll 2 - 3 tbsp cookies into sheet.
Bake for 10 - 12 minutes.
Cool for 5 minutes before removing.