Without the prawn crackers, this is in itself a delicious summer salad – served as a light main course, or as a side dish at a barbecue. Presented like this, however, on cooked Indonesian krupuk udang, the original prawn crackers, it becomes an altogether different taste sensation. You’ll be able to find uncooked krupuk in any Chinatown, but you may prefer just to buy the pre-cooked ones from larger supermarkets or, again, Chinatown.