Preheat oven to 365 degrees.
Cream butter until smooth, add sugars and cream again.
Add eggs and vanilla and mix until combined.
Add flours, salt, baking powder and baking soda, mix until incorporated, then mix in chocolate chips. (A stand mixer is recommended as the dough will be very thick).
Scoop out dough and round into golf ball sized balls and place on cookie sheets.
Bake 9-10 minutes until VERY light golden - do not overcook.
Cool on baking sheet 3-4 minutes before removing to cooling rack.