Accompaniment liver is a dish made from the ORGAN of a calf or sheep, usually served as an accompaniment to other dishes. It is made from onions, the ORGAN foie, and BILE. Onions are a vegetable that are widely used in cooking, and are composed of multiple layers of thin, papery skin. The ORGAN foie is a type of liver, and is considered a delicacy in many cultures. BILE is a digestive fluid produced by the liver, and is important for breaking down fats. Together, these ingredients create a flavorful accompaniment to other dishes.