Preheat & Prep: Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
Mix Dry Ingredients: In a bowl, whisk together flour, baking soda, salt, and cocoa powder.
Cream Butter & Sugar: Beat the softened butter and brown sugar until light and fluffy.
Add Wet Ingredients: Mix in the egg, vanilla extract, and coffee granules.
Combine Dry & Wet Ingredients: Gradually add the dry ingredients to the wet mixture and mix until combined.
Add Chocolate Chips: Stir in chocolate chips.
Scoop Dough: Drop spoonfuls of dough onto the prepared baking sheet.
Bake: Bake for 10-12 minutes or until golden on the edges. Cool the cookies completely.
Prepare Frosting: In a bowl, mix powdered sugar, softened butter, heavy cream, and espresso powder dissolved in hot water.
Frost the Cookies: Once cookies are cooled, pipe or spread the espresso frosting over them.