1. Prepare the Dough:

• In a bowl, whisk together flour, cocoa powder, baking powder, baking soda, salt, and espresso powder.
• In a stand mixer, beat butter, brown sugar, and granulated sugar until smooth and creamy.
• Add the egg and vanilla extract, mixing until combined.
• Pour in the vodka and mix again.
• Gradually add the dry ingredients and mix on low speed until combined.
• Fold in the dark and white chocolate chips.
• Cover the dough and chill in the fridge for 1 hour.

2. Bake the Cookies:

• Preheat the oven to 350°F (175°C).
• Line two baking sheets with parchment paper.
• Roll 2 tablespoons of dough into balls and place them on the baking sheets.
• Bake for 12 minutes, then let cool for 10 minutes on the sheets before transferring to a wire rack.

3. Make the Glaze & Decorate:

• Mix powdered sugar and coffee liqueur until smooth and pourable.
• Drizzle the glaze over cooled cookies.
• Top each with a chocolate-covered espresso bean (if using).