Baking Instructions

• Preheat oven to 350°F (175°C) and line a baking sheet with parchment paper.
• In a medium bowl, whisk together flour, baking soda, cream of tartar, cinnamon, and salt.
• In a separate large bowl, beat together the butter, granulated sugar, and brown sugar until light and fluffy.
• Add the egg and vanilla extract, beating until well combined.
• Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
• Gently fold in the chopped apple.
• In a small bowl, mix the ¼ cup sugar and cinnamon for rolling.
• Roll tablespoon-sized portions of dough into balls, then roll each ball in the cinnamon sugar mixture.
• Place the dough balls on the prepared baking sheet, spacing about 2 inches apart.
• Bake for 8–10 minutes, or until the edges are golden and the centers are set.
• Let cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.