Preparation Steps

• Preheat oven to 400°F (200°C). Line baking sheets with parchment paper.
• In a medium bowl, whisk together flour, cream of tartar, baking soda, and salt. Set aside.
• In a large bowl, beat softened butter and 1 1/2 cups sugar until light and fluffy, about 2–3 minutes.
• Beat in eggs one at a time, then add vanilla extract.
• Gradually mix in the dry ingredients until just combined.
• In a small bowl, combine 2 tablespoons sugar and cinnamon for rolling.
• Roll dough into 1-inch balls and coat each in the cinnamon-sugar mixture.
• Place balls 2 inches apart on prepared baking sheets.
• Bake for 8–10 minutes, or until edges are lightly golden but centers still look soft.
• Cool on baking sheet for 5 minutes before transferring to a wire rack.