Preheat oven 325 FIn a large bowl, whisk the flour, baking soda, and salt together. In another bowl, cream the butter. Use beater if wanted. Whisk the 1 egg & 1 yolk. Add eggs, sugar and brown sugar.Stir in the vanilla.Add wet ingredients to the dry ingredients. Stir until mixed.Pour in the chocolate chips. Mix.On a baking sheet with parchment paper, scoop golf size balls. Place 2-inches apart. Bake 12 minutes.