The ingredient found in almost all Thai dishes and every region of the country is nam pla, a very aromatic and strong tasting fish sauce. Shrimp paste, a combination of ground shrimp and salt, is also extensively used. There is a uniquely Thai dish called nam prik which refers to a chile sauce or paste. It is prepared by crushing together chillies with various ingredients such as garlic and shrimp paste using a mortar and pestle. It is then often served with vegetables such as cucumbers, cabbage and yard-long beans, either raw or blanched. The vegetables are dipped into the sauce and eaten with rice.