Peel garlic and onions and cut them into fine cubes. Wash the chillies and cut into thin rings. Wash basil and coriander, shake dry and, except for something to garnish, pluck leaves from the stems and cut into strips.
Heat the oil. Fry garlic, onions and chillies for about 2 minutes. Remove the pot from the hotplate. Add fish sauce, soy sauce, 6 tablespoons of water and herbs. Wash the fish thoroughly and pat dry.
Cut the fish skin with a sharp knife in a diamond shape. Salt the fish on the outside and inside and turn it into starch, tap off the remaining starch. Heat frying oil in a large pan. Fry 2 dorades on each side for about 2 minutes.
Remove from the pan, keep warm and fry the remaining fish. Arrange Doraden on banana leaves. Drizzle with sauce and garnish with herbs. Serve with rice.