Adapted from Lisa of Parsley, Sage and Sweet
1 cup cold butter
1 cup brown sugar
1/2 cup sugar
1/2 teaspoon vanilla paste
3/4 teaspoon baking powder
1/4 teaspoon baking soda
1/4 teaspoon salt
1 tablespoon cornstarch
3 1/3 cups flour
2 cups semi-sweet chocolate chips
Preheat oven to 350º. Line two cookie sheets with parchment.
In a large bowl, cream the butter and sugars with an electric mixer. Add eggs, one at a time and mix till combined. Add vanilla paste, then dry ingredients. Stir in chocolate chips
Divide the dough into 12 equal parts. Roll into balls and freeze for 10 minutes. Place 6 dough balls on each cookie sheet and bake about 20- 25 minutes, till edges are golden. Cool about 5 minutes, then remove to cooling rack.
Makes 12 very large cookies.