An ingredient found in many Thai dishes and used in every region of the country is nam pla, a clear fish sauce that is very aromatic. Fish sauce is a staple ingredient in Thai cuisine and imparts a unique character to Thai food. Fish sauce is prepared with fermented fish that is made into a fragrant condiment and provides a salty flavor. There are many varieties of fish sauce and many variations in the way it is prepared. Some fish may be fermented with shrimp or spices. They have too strong and pungent flavor. Another type of sauce made from fermented fish is pla ra.