recipe for snickerdoodles

Ingredients 1 cup unsalted butter, softened 1 1/2 cups granulated sugar 2 large eggs 2 3/4 cups all-purpose flour 2 teaspoons cream of tartar 1 teaspoon baking soda 1/4 teaspoon salt 2 tablespoons granulated sugar (for rolling) 2 teaspoons ground cinnamon (for rolling)