The lovely Joulep café in Shiraz serves an unusual saffron latte, a combination that is surprising and very good so I have used it here in a saffron cake with a coffee cream. I made a tall celebration-style cake which serves 12 but you can easily half the sponge mix to make one shorter cake for 6 people. If you do that, reduce the coffee cream only by a third (2 eggs, 150g icing sugar, 200g butter, 11⁄2 tablespoons coffee), so you still have plenty of icing. The sponge needs the moisture of the coffee cream and liqueur, so if you don’t want the alcohol, use weak coffee or even orange juice to drizzle over the layers.
The saffron toffee is a little tricky because the saffron makes it such a lovely orange colour that it’s hard to tell when the sugar starts to caramelise. Keep a close eye on it and you can tell by the smell, or test little bits on the paper as it bubbles. If the weather is muggy, make the toffee just before you need it. Of course, it is not essential to the cake if that all seems too hard!