Cranberry Upside-Down Cake with Lemon & Ginger

Once upon a time, cranberries were only available in winter and difficult to find unless you were lucky to know a forward-thinking grocer. Thankfully, now we can get frozen cranberries all year round in many supermarkets. It is the tartness and vibrant colour of cranberries that make them an excellent candidate for this upside-down cake. Substitute with other berries, or the more traditional pineapple slices and glacé cherries, if you wish.