Please preheat the oven to 180 ° and grease and flour a springform pan (23cm).
Then put the beer in a large saucepan and add the butter and let it melt and take the saucepan off the stove. Now stir in the cocoa and sugar.
In a small bowl, beat the sour cream and eggs, vanilla and add it to the beer mix. Now slowly stir in the flour with the soda (baking soda) until a smooth dough is formed - do not stir too much!
Pour the dough into the baking pan and bake the cake for about 45 minutes - 60 minutes.Let it cool completely in the mold - as it is a rather moist cake!
Carefully beat the cream cheese until it is smooth and soft and then stir in the powdered sugar until a smooth, spreadable glaze is created, now spread the cake loosely on top.