Prahoc is a Cambodian fish paste. Prahoc is made with eviscerated fish, scaled and washed, then pressed under banana leaves. The fish are mixed with coarse salt and sun-dried to lose some of their moisture, before being pounded to a paste. This product is then left to ferment.
Dowell, P., Bailey, A. (1980) The Book of Ingredients, Dorling Kindersley. ISBN 0718119150.