Asam laksa is a sour fish-based soup. Asam (or asam jawa) is the Malay word for tamarind, which is commonly used to give the stock its sour flavor. It is also common to use "asam keping" also known as "asam gelugor", dried slices of tamarind fruit, for added sourness. Modern Malay spelling is asam, though the spelling assam is still frequently used.
The main ingredients for asam laksa include shredded fish, normally kembung fish or mackerel, and finely sliced vegetables including cucumber, onions, red chillies, pineapple, lettuce, common mint, "daun kesum" (Vietnamese mint or laksa mint) and pink bunga kantan (ginger buds). Asam laksa is normally served with either thick rice noodles or thin rice noodles (vermicelli). And topped off with "petis udang" or "hae ko" , a thick sweet prawn/shrimp paste.
