DirectionsPreheat oven to 400 degrees FCream together butter, shortening, 1 1/2 cups sugar, the eggs and the vanilla. Blend in the flour, cream of tartar, soda and salt. Use a small cookie scoop and roll into balls, about 2 tbsp each. Mix the 2 tablespoons sugar and the cinnamon. Roll balls of dough in mixture. Place 2 inches apart on ungreased baking sheets.Bake 8 to 10 minutes, or until set but not too hard. Remove immediately from baking sheets.