Snickerdoodles Recipe from Jessica Seinfeld

Ingredients

• 2¼ cups all-purpose flour
• 1 teaspoon ground cinnamon
• 1 teaspoon baking soda
• 1½ teaspoons cream of tartar
• ½ teaspoon kosher salt
• 1 cup (2 sticks) unsalted butter, at room temperature
• 1½ cups sugar
• 1 large egg
• 1 teaspoon pure vanilla extract
• 3 tablespoons sugar, for rolling
• 2½ teaspoons ground cinnamon, for rolling