Sayur asem is an Indonesia popular soup dish with sour taste. Common ingredients are peanuts, chayote, long beans, corn etc. Dish of sayur asem is perfect for a lunch meal, it tastes fresh, sour and slightly spicy. Sayur asem is usually combined with anchovies and chilli paste. Distinctive sour taste comes from jawa’s tamarind (asem jawa) or can be replaced with tomatoes that are still green.