Probably the best chocolate cake in all of Munich is the chocolate rum truffle cake sold at Allois Dallmayr on Marienhof.
It consists of a thin base of pastry, covered by two thin layers of chocolate sponge with fudge in between, all topped with a final deep layer of more chocolate fudge.
This is possibly the richest cake you'll ever eat. Buy one on a Friday evening and you won't need to eat anything else all weekend. A bargain for just €13.50.
During advent the cakes are offered with a marzipan angel on top. I'd choose without the angel though. They cost an extra €7, they don't taste that great, and they're totally gay anyway.
The catalogue number is 6629. This particular cake is not available via the Dallmayr online shop though. So don't confuse it with the Prinzregenten Torte (6627) that you see there.
This has been a public service announcement, not a sponsored product placement.
Allois Dallmayr, Dienerstr. 14-15, 80331 Munich
Open Monday to Saturday, 9.30am to 7pm
See also the related discussion about cafes and restaurants that serve chocolate cake.