Florida cocktail

Cut a slice off the top and bottom through to the flesh of 3 grapefruits. For best colour contrast include 1 pink grapefruit, if possible. Stand each grapefruit upright and, using a sharp knife, cut downwards and around to remove white pith and peel. Then hold prepared fruits over a mixing bowl to catch juices, cut in between each segment to loosen and turn them into the bowl. Discard pips. Prepare 2 oranges the same way. Add 2oz (50g) castor sugar. Stir fruits and refrigerate for at least 1 hour so sugar and juices form a syrup. This mixture looks best in a clear glass bowl or spoon it into individual serving glasses with sugared rims.