This cake is not for those remotely on a diet or who are not very fond of chocolate.....
1 C butter
14 oz good quality dark chocolate
2 oz unsweetened chocolate
9 large eggs, room temp, separated
1/2 C sugar
1/4 t cream of tartar
Powdered sugar for top
Preheat oven 300 degrees. Cover bottom of 9" X 3"
springform pan with foil while separated from ring. Reassemble pan and grease and flour (using cocoa powder), the bottom and sides of pan..
In Large glass bowl, combine butter with
chocolate and microwave at 50% for a couple of minutes. Stir until
smooth. It may have to be nuked again for another minute or so.
In small bowl, beat egg yolks with sugar until very thick and lemon yellow colored. Add to the chocolate mixture with rubber spatula until blended.
In medium to large bowl, beat egg whites with cream of tartar until soft peaks form. Fold whites into chocolate mix in thirds. This will take a while as it is a gentle process to retain the volume of the whites.
Pour batter into pan. Bake 35 minutes It will not be jiggly, but not firm either. Allow to cool to room temp and then chill overnight in fridge. Bring to room temp and dust with powdered sugar when you are ready to serve.
This V-Day, I substituted almost all of the dark chocolate with Black Opal Cocoa powder and additional butter and I also used the Black Opal for the unsweetened
chocolate. I made a half batch of the mix, using 5 eggs and baked 20
minutes in six 7 oz ramekins. This resulted in a black (think
Oreo cookies) firm, intensely chocolate cake that was a bit dry - more butter next time. Mark requested that next time, I not promise two cakes out to friends and that I make 100 instead of six - so still a hit!