In order to have this delicious crabs in tamarind sauce, caught crabs can lively crawl and be washed. Separate their plastrons and cut their legs and put them into a hot oil frying pan and then add garlic to create scent. The dark color of crabs turns gradually red and then scarlet and looks very nice. Make tamarind sauce thick with not too much water and then add sugar, salt, sodium glutamate etc. for delicious taste. After that pour it into the pan of crabs on the slight fire for the spice to penetrate crabs. Well-done crabs have good smell. Place them in a plate and sprinkle the plate with roasted peanuts and persicaria. Enjoying crabs in tamarind sauce with crispy taste, sweet and firm meat and sour pungent fatty tastes will have a strange feeling. One who eats the dish too much still desires its special scent and tastes.