For the record, the basic version mates cooked chopped chicken livers, hard-cooked eggs, chicken fat and very browned onions. The liver can be broiled or sauteed. But there are variables.
Some families increase the proportion of eggs and onions to liver.
Others add chick peas. Or herbs and shallots and nutmeg. Or peas and pecans. In fact, sometimes what passes for chopped liver is made without any liver at all. But the liver-less versions could just as well be the first course in a meal where the main dish is a heavy one.