Best liver ever- this isnt even my chiddush, so im telling the truth.
1- fry a few onions chopped up on a low heat unril they carmelize. use alot of oil. alot. like brisker shiur.
2- when onions are done, add brown sugar and soy sauce- trust me.
3- add salt and pepper and liver.
4- let it all sit in the pan on a low heat for maybe 10-15 minutes.
5- hide it from any bochurim who happen to live on your block.