Sauté onions,add liver,brown sugar,salt, black pepper, and a little soy & teriyaki sauce.
Came out amazing, everyone loved it.
There wasn't an onion left in the bowl, to bad I only sauté 3 onions next time I got to use ones which are a bit bigger or more smaller ones, but overall everyone loved it, I have a friend of mine who's been calling me this week and last week to cook him up some liver, he said this was the best liver he's tasted.
I like the liver soft so i don't cook it at all 
I cook a lot of onions with 65% oil 35% water with:
Honey
Salt
Garlic powder or frozen crushed garlic
Minced garlic
Black Pepper
(Hungarian) Paprika
Cook for a long long time, remove from stove add liver.
Didn't have a chance to try yours as I realized I didn't have any honey left(some must have finished it.) stores were all closed, so tried the other recipe with the basic ingredients.
Ever heard of anyone put an egg into their liver? (meaning when they sauté the onions? )