Ultimate Chocolate Chip Cookies

Preheat oven to 325 degrees F. Combine flour, baking soda and salt; set aside. Cream butter and sugars together in mixing bowl; beat in vanilla, egg, and egg yolk until creamy. Mix dry ingredients and blend until combined. Stir in chips. Drop 1/4 cup dough at a time on greased cookie sheet, about 3" apart. Bake 13-17 minutes. Cool on cookie sheets for a few minutes, then transfer to wire racks. This recipe makes very large cookies. The picture is a cookie on a toddler-sized plate.