A relation of the blackberry, the loganberry and the boysenberry, the raspberry is made up of numerous smaller fruits called ‘drupelets’, clustered around a central receptacle. Each drupelet contains a small seed. Most raspberries are red, although there are yellow, orange, amber, white and black varieties. Although a more delicate fruit than strawberries, they can be used in much the same way and are interchangeable in most recipes. Raspberries do not ripen once picked, so they should always be bought when fully ripe. Buy them on the day they are to be eaten, and avoid washing them, or wash them just before eating, and handle them as little as possible.