Step 1: Preheat and Prepare
Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
Step 2: Brown the Butter
In a saucepan, melt the butter over medium heat until golden brown. Set aside to cool.
Step 3: Mix Dry Ingredients
In a bowl, whisk together flour, baking soda, and salt. Set aside.
Step 4: Cream Butter and Sugars
Beat the brown butter with both sugars until fluffy.
Step 5: Add Wet Ingredients
Mix in the egg and vanilla extract until combined.
Step 6: Combine Dry and Wet Ingredients
Gradually add the dry mixture into the wet ingredients, stirring until just combined.
Step 7: Add Chocolate Chips
Fold in the chocolate chips.
Step 8: Form and Bake
Scoop the dough onto the baking sheet, and bake for 12-15 minutes until golden brown.
Step 9: Prepare Espresso Glaze
Dissolve the espresso powder in hot water, then mix with cocoa powder and powdered sugar to form a smooth glaze.
Step 10: Drizzle and Serve
Drizzle the glaze over the cooled cookies.