Snickerdoodle   Ingredients 1 Cup Butter (softened) ¾ Cup Granulated sugar ½ Cup Brown sugar 1 Egg plus 1 yolk 1 Tbsp Vanilla 1 tsp cream of tartar 1 tsp baking soda ½ tsp Salt 1 tsp Cinnamon 2¾ Cup AP flour Cinnamon Sugar ¼ Cup Granulated sugar 1 Tbsp Cinnamon [...]