I had a minor catastrophe in the kitchen this week - I split my ganache! I followed the same method I've always used: * 2:1 ratio of dark chocolate to cream * roughly chop the chocolate and put into a bowl * heat the cream to just boiling point in a small saucepan * pour the hot cream over the chocolate * stir until melted. It looked fine. It was lumpy initially but did become smooth after a lot of stirring. I allowed it to rest overnight but the next day it had a film of oil over the top. I tried to remix it, heating it gently in the microwave on low power. It turned grainy and lumpy. I tried mixing in some more cream. It looked worse. It was unusable. Time to cut my losses and start again. So what went wrong? Ganache is a notorious for being temperamental. You are emulsifying two seemingly un-mixable ingredients with the aid of heat and aeration. A lot can and often does go wrong. With a little guidance from some of my learned friends on Planet Cake's Tea Party...