I was looking through an old Mexican cookbook I have and found this recipe. For those of you who have made Miss Annie's Chocolate Flan Cake without cajeta, please try it with. I have made it both ways and the cajeta is definitely richer. This is also called Leche Quemada (burnt milk), though, in fact, the milk is not burned, but cooked to a soft caramel. In addition to using for the cake, this can be spread on bread, biscuits or as a topping for ice cream.