Dark soy sauce is commonly used as either a dip or seasoning for many Thai menus. It gives a tasty dark-brown appearance and aromatic flavour.
Thai cuisine noticeably does reflect the influence of the culinary art of cooking of The Chinese. For example, the use of dark soy sauce, see-ew dum, in many Thai menus. It is sweetened soy sauce with a dark colour, thick-syrup-like consistency and, pronounced, a sweet and somewhat molasses-like flavour.
Often added in small amount in making many stir-fried, grilled, barbecued and stewed dishes.