Beat in the carrots and then fold in the walnuts and crystallised ginger, until everything is evenly combined. Spoon into the prepared tin. Don’t worry if it looks as if you haven’t got enough ...

This is a fantastic chocolate oaty fridge cake is packed with dried cranberries, cherries and the spicy kick of crystallised ginger. It’s great in a picnic box too. Melt the butter in a pan.