Famous Chocolate Truffle Cake Description References. Put chocolate, butter, and 1 tablespoon sugar in a medium heatproof bowl set over a pan of simmering water; (if your sponge is moist use less cream if the sponge is a little bit dry, add more cream.

Place the chocolate and cocoa powder in a large bowl. Pour truffle mixture onto cooled base and smooth. Chocolate cake truffles dipped in chocolate and sprinkled with freeze dried strawberry dust or dried rose petals.