170g(6 ounces) high quality semisweet or bittersweet chocolate
115g(8 tabelspoons) unsalted butter, room temperature
100g(½ cup) granulated suger
1teaspoonpure vanilla extract
1 to 2teaspoonespresso powder
4large eggs (room temperature)
25g(⅓ cup) unsweetened natural or dutch-process cocoa powder
Instructions
Preheat oven to 350°F (177°C). Lightly grease a metal 8" round cake pan; cut a piece of parchment to fit, grease it, and lay it in the bottom of the pan.
Put the chocolate and butter in a microwave-safe bowl, and heat until the butter is melted and the chips are soft. Stir until the chocolate melt, reheating briefly if necessary. You can also do this over a double boiler.
Transfer the melted chocolate/butter to a mixing bowl. Stir in the sugar, salt, espresso powder, and vanilla. Add the eggs, beating briefly until smooth. Add the cocoa powder, and mix just to combine.
Pour the batter into the prepared pan and bake the cake for 25 minutes or until the cake has a thin crust on the top and the center.
Let the cake cool on a wire cooling rack for 10 minutes, dust with cocoa powder, serve and enjoy!