A couple of weeks ago I scoured all the supermarkets for dulce de leche (including a massive Sainsbury's), having previously never heard of it but then having seen Jamie Oliver using it in a cake on the telly, and couldn't find it anywhere. I was assured that Carnation tinned caramel is the same thing so I bought a tin of that. It better had be the same, otherwise I'm going to be minorly irritated!