"I can't stress enough how important it is to allow the ricotta cheese enough time to strain. It needs to be super dry in order to keep the cannoli cream from being runny - allow it to strain for at least 8 hours but overnight in the fridge is best.Traditional cannoli shells are made with sweet Marsala wine but the original recipe suggests that you can use 8 tablespoons of apple or grape juice and 2 tablespoons of white wine vinegar in place of the Marsala if you choose to. The Marsala lends a subtle flavor to the shells and doesn't overwhelm them at all...."