Carrot, courgette and cardamom are a wonderful combination of flavours. The cake itself is moist enough but for that extra special touch you can add the delicious rosemary & orange crème fraiche. If you want to go all out, you can make mini carrots and courgettes out of marzipan with a little orange and green food colouring and angelica root for the stalks. This cake will keep in the fridge for 3–5 days.