01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - Whisk together flour, cinnamon, baking powder, baking soda, and salt in a medium bowl.
03 - In a large bowl, beat softened butter with granulated sugar until light and fluffy, about 2-3 minutes.
04 - Add egg and vanilla extract to the butter mixture and mix until fully blended.
05 - Gradually fold dry ingredients into wet ingredients until just combined.
06 - Scoop rounded tablespoons of dough and roll into balls; place on baking sheets spaced 2 inches apart.
07 - Bake for 9-11 minutes until edges are golden and centers remain slightly soft.
08 - Let cookies cool on baking sheets for 3 minutes, then transfer to a wire rack to cool completely.
09 - Mix powdered sugar and cinnamon in a small bowl. Once cookies have cooled, dust generously with the mixture.