1. Preheat oven to 350°F.
2. Melt the chocolate in a double boiler. Add the coffee. Add the butter, stirring the mixture smooth.
3. In a bowl, whisk the eggs and sugar. Add the flour, then the melted chocolate, stirring without stopping.
4. Grease the mold and pour in the batter.
5. Bake for 10 minutes and let cool on a rack.
6. For the glaze: mix the cocoa, powdered sugar, butter, and milk in a robot until the mixture is smooth.
7. Glaze the top of the cake and serve.