01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together flour, cinnamon, baking soda, and salt.
03 - In a large bowl, beat softened butter and sugar until light and fluffy, approximately 2 minutes.
04 - Incorporate the egg and vanilla extract into the butter-sugar mixture, mixing until fully combined.
05 - Gradually add the dry ingredients to the wet mixture, mixing just until a soft dough forms.
06 - In a small bowl, combine sugar and cinnamon designated for rolling.
07 - Scoop tablespoon-sized portions of dough, roll into balls, then coat each ball thoroughly with the cinnamon-sugar mixture.
08 - Place the coated dough balls on prepared sheets, spacing them approximately 2 inches apart.
09 - Bake for 11 to 13 minutes, until edges are firm and centers remain slightly soft.
10 - Allow cookies to rest on baking sheets for 5 minutes before transferring to a wire rack to cool completely.