After you cook the liver and fry the onions, this takes really only minutes to make and is one of the best recipes for chopped liver! After you process your cooked chicken use about 1/4 cup of the chicken for this recipe. I like to also add in some schmaltz which is rendered chicken fat it adds so much flavor to the chopped liver! I strongly suggest to make a double amount an freeze some, you won't be able to keep your spoon out this lol!! You can cook the liver and sauté the onions up to a day in advance to save some time if desired.