This dish only takes a few minutes from start to finish. The flavours are excellent as long as you have good quality ingredients you will be rewarded. Buffalo Mozzarella should melt in the mouth and is best eaten soon after it is prepared, so if you have a local importer its worth paying for. If you are unable to purchase it freshly, most supermarkets now sell it sealed in small plastic bags alongside the normal variety of mozzarella. The best tomatoes are vine ripened or plum tomatoes, they should be bright red and ripe (try smelling them when you purchase them for flavour) tomatoes should be served at room temperature and not cold straight from the fridge.