Gooey dark chocolate brownies with a homemade salted espresso chocolate frosting make for a super indulgent treat!
Grease the pan and prepare for baking.
Pre-heat the oven per the instructions on the box.
Whisk together the brownie mix, espresso powder, oil, water, eggs and salt.
Fold in the chocolate chips until evenly incorporated throughout the batter. Pour the mixture into the prepared baking pan.
Bake per the box instructions, or until the brownie is firm around the edges and just set in the middle. A knife inserted into the middle should come out of the middle with a few moist crumbs attached, not clean. Remove from the oven and allow the brownie to cool completely in the pan.
First, melt down the chocolate in a double boiler. Heat, over medium-low and stirring often, until melted and smooth. Remove from the heat and set aside to cool slightly.