A delicious variation on the traditional pineapple recipe. The caramelized topping that characterizes an upside-down cake is created during baking by the combination of sugar, butter and fruit juices.
Put a 20 x 4 cm (8 x 1½ inch) round sandwich tin onto a sheet of greaseproof paper, trace around the base with a pencil and cut out a circle just inside the pencil marking. Brush the inside of the tin with melted butter and place the paper inside the tin. Preheat the oven to moderate 180°C (35