Preheat the oven to 350 degrees. In a large bowl, combine sugars and add in butter and cream together until soft.
Add vanilla and eggs; mix together.
In a sifter, add the dry ingredients and then sift into the creamed mixture.
Mix well – the dough will be stiff. Stir in the chocolate chips.
Line your cookie sheets with parchment paper (or the Silpat!). Drop dough with a small scoop (or spoon) onto the sheets.
Bake 10-12 minutes at 350 degrees. Remove from oven and cool on wire racks.