Gluten-Free Boiled Orange and Lemon Cake with Honey

There are many traditional recipes for a boiled orange cake, and this is just my version of the beautiful Middle Eastern-inspired cake: moist, rich and gluten-free. This recipe does take a little longer to cook than other cake recipes, as you need to boil the citrus fruits to make them soft enough to blitz into a puree. If you wish to decorate your cake with a flower, make sure it is safe to use with food and not poisonous.