I have in mind the dessert I want to make for NYE but can't find a recipe - basically a roulade / yule log cross that is dairy-free (but doesn't require any specialist vegan ingredients that I won't have in the house or be able to buy in the local small supermarket). So I'm thinking meringue and chocolate swiss roll type sponge rolled together with a diary-free spread/cocoa/vanilla buttercream. Is that feasible and if so how do I do it?