Chocolate loaf cakes are among my favourite – possibly as I over-indulged on Mr Kipling’s very chocolatey mini loaf cakes as a child, with their chocolate chips and thick layer of chocolate fondant icing. This triple chocolate version – including the all-important chips – includes rosemary for a subtle herbal note, and a thick ganache topping, with a yogurt base for a beautifully textured sponge.