Step 1

Preheat the oven to 350ºF.

Step 2

Line a 8x8 inch square pan with parchment paper and spray with non-stick cooking spray. Set aside.

Step 3

In a mixing bowl, combine the eggs, melted butter, buttermilk, brownie mix, cocoa powder and espresso powder and beat with an electric mixer on low until combined, about 1 minute.

Step 4

Pour the brownie batter into the prepared pan. Spread evenly with a spatula.

Step 5

Bake for 37-40 minutes or until a toothpick inserted in the center comes out clean.

Step 6

Allow the brownies to cool. Remove the brownies from the pan using the parchment paper. Slice and serve.