i know what you're thinking im mad but i want to make a white chocolate cake for my daughters christening, but i have no recipe to follow for such big quantities. i need a cake big enough for around 70 but to be honest a smaller one would do cos im sure not everyone will want some. i have it in my head that it must be a white chocolate one. i bought 4 jars of limited edition white chocolate hot chocolate this morning at tescos when i saw it just in case i can use it in the cake. i have never seen it before. can anyone help please xxx