Il Gelato di San Crispino serves what many consider to be the best ice-cream in Rome - some say in the world. The secret is the makers' obsessive control over the whole process. The flavours on offer change according to what's in season - in summer the lampone (raspberry) and susine (yellow plum) are fabulous. Cones would interfere with the purity of the product: only tubs are allowed. The original branch is out in the sticks; the central branch has the advantage - over and above its location - of offering exquisite Jamaican coffee. On Fridays and Saturdays in summer San Crispino remains open until 1.30am.