Preparation Steps

• Preheat your oven to 375°F (190°C). Line baking sheets with parchment paper.
• In a large bowl, cream together the softened butter and 1.5 cups of granulated sugar until light and fluffy.
  0.5 cup Unsalted Butter
• Beat in the eggs one at a time, then stir in the vanilla extract.
  0.5 cup Unsalted Butter
• In a separate bowl, whisk together the flour, cream of tartar, baking soda, and salt.
  0.5 cup Unsalted Butter
• Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Do not overmix.
• In a small bowl, combine the 0.25 cup of granulated sugar and 2 teaspoons of ground cinnamon for the coating.
  0.5 cup Unsalted Butter
• Roll rounded tablespoons of dough into balls. Then, roll each ball in the cinnamon-sugar mixture.
• Place the coated dough balls about 2 inches apart on the prepared baking sheets.
• Bake for 9-12 minutes, or until the edges are lightly golden and the centers are still slightly soft.
• Let the cookies cool on the baking sheets for a few minutes before transferring them to a wire rack to cool completely.