01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - Whisk together flour, cocoa powder, espresso powder, baking soda, baking powder, cinnamon, and salt in a medium bowl.
03 - Using an electric mixer or whisk, blend butter, granulated sugar, and brown sugar until light and fluffy, about 2 to 3 minutes.
04 - Beat in egg and vanilla extract until fully combined.
05 - Gradually add dry ingredients to the wet mix, stirring until just incorporated.
06 - Scoop tablespoon-sized dough portions, roll into balls, then coat each ball evenly with granulated sugar.
07 - Place dough balls on prepared sheets, spacing them 2 inches apart.
08 - Bake for 10 to 12 minutes until edges set and centers remain slightly soft.
09 - Let cookies cool on baking sheets for 5 minutes before transferring to a wire rack to cool completely.