5 1/2ouncesunsalted butter(1/2 cup + 3 tablespoons)
4 1/2ouncessemi-sweet chocolate
3largeeggs
1 1/4cupgranulated sugar
1teaspooncoffee extract
2tablespoonsespresso powder
1cupall-purpose flour
1/4cupDutch-processed cocoa powder
Frosting:
1/4cupunsalted butter,room temperature
1teaspoonespresso powder
1-2tablespoonscold black coffee
1cuppowder sugar
Instructions
In a small saucepan put the butter and chocolate and place over medium heat. Stir until melted and smooth. Leave to cool for a couple of minutes.
Heat the oven to 350 degrees F. Line an 11x7 inch baking pan with parchment paper. Set aside.
In a mixing bowl add the 3 eggs and the sugar and start mixing on low-speed slowly increasing to medium until the eggs become pale and thicken. Without turning the mixer off, stir in the warm chocolate.
Add the coffee extract and espresso powder followed by the unsweetened cocoa and all-purpose flour.
Pour the batter into the prepared pan and bake for 40 minutes or until a toothpick inserted in the middle comes out clean. Leave to cool completely before frosting them.
To make the frosting, cream the butter, espresso powder and cold coffee in a mixing bowl slowly adding the powder sugar. If needed add more cold coffee or sugar until you reached the desired consistency.