Preheat the oven to 375°F and grease a round cake pan. To line the bottom of the pan, cut a piece of parchment paper to fit, grease it, and lay it in the bottom.
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 chips melt, reheating briefly if necessary. Pour the melted chocolate/butter into a mixing bowl.
Stir in the sugar, salt, coffee, and vanilla. The coffee and vanilla will really make the chocolate cake flavor stand out!
Add the eggs to the mixture and beat until smooth. Finally, add the cocoa powder and combine. Make sure not to overmix the batter.
Spoon the batter into the prepared pan and bake for 25 minutes or until the top forms a thin crust.
Remove the cake from the oven and cool it in the pan for 5 minutes.
Loosen the edges of the pan with a table knife and turn it out onto a serving plate so that the top is now on the bottom. Allow the cake to cool completely before glazing.
You can make the chocolate ganache while the cake is cooling. Combine the chocolate and cream in a medium microwave-safe bowl and heat until it is very hot. Remove from the microwave and stir the mixture until the chocolate melts and it is smooth.
Spread the chocolate ganache glaze evenly over the cooled cake. Let the glaze set up for a few hours before cutting and serving the cake. We suggest you put it in the refrigerator to speed up the process.
Cut the cake into slices and serve them topped with the golden chocolate coins!