This is one of my favourite chocolate glazes, for its clean, smooth finish. It conforms perfectly to the shape of the mould, with a glossy texture and a very neat result - no gelatine, no syrup, just chocolate and a little oil. I often use it to frost cakes baked in silicone moulds. The cake is then poured back into the chocolate-lined mould, left to rest, and when the mould is removed, the icing hugs the cake like a second skin.