Preparation Steps

• Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper. In a small bowl, mix together the sugar and cinnamon for rolling later.
• In a medium bowl, whisk together flour, cream of tartar, baking soda, and salt. Set aside.
• In a large bowl, beat the softened butter, granulated sugar, and brown sugar until creamy. Add the eggs one at a time, mixing well, then stir in the vanilla.
• Gradually add the dry ingredients to the wet mixture until combined. The dough will be soft and a little sticky.
• Scoop out the dough using a cookie scoop, roll into balls, and then roll each ball in the cinnamon sugar mixture.
• Place the balls on the prepared baking sheet, spaced about 2 inches apart. Bake in the preheated oven for 8-10 minutes until the edges are just lightly golden.
• Allow the cookies to cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely. Enjoy your warm, chewy cookies!