Preheat Oven – Set to 350°F (175°C). Line a baking sheet with parchment paper.
Mix Dry Ingredients – In a bowl, whisk flour, cocoa powder, baking soda, salt, and espresso powder.
Cream Butter & Sugar – Beat butter, brown sugar, and granulated sugar until fluffy.
Add Eggs & Vanilla – Mix in eggs and vanilla extract until smooth.
Combine & Fold – Gradually mix dry ingredients into the wet mixture.
Stir in Chips – Fold in chocolate chips, mocha chips, and dark chocolate chunks until evenly distributed.
Scoop & Shape – Drop tablespoon-sized dough balls onto the prepared baking sheet.
Bake – Bake for 10-12 minutes until slightly firm on the edges but soft in the middle.
Cool & Devour – Let cookies cool on a wire rack before inhaling.