best snickerdoodle cookie recipe

Ingredients: 1 cup (2 sticks) unsalted butter, softened 1 ½ cups granulated sugar 2 large eggs 2 ¾ cups all-purpose flour 2 teaspoons cream of tartar 1 teaspoon baking soda ¼ teaspoon salt 2 tablespoons granulated sugar (for rolling) 2 teaspoons ground cinnamon (for rolling)