India, Feb. 25 -- The entire setup is as showy as a theatre, with a modest street cart as the stage, and a metal roller as the main actor. The sealed roller is filled with crushed ice and salt. Thick layers of milky cream lie spread evenly about the roller's outer surface. The heavy roller is continuously rotated by a hand-operated handle to keep the cream frozen. While the air around the cart bears fruity aromas-no artificial colours or syrups in sight.* This is the world of roller wali ice-cream. Unlike industrial ice cream, it is made right in front of the customer. The recipe is simple: ice, and cream, and fruit. Freshly cut pieces of fruit are pressed onto the rotating roller; they cling quickly to the cream lying frozen about the roll...