My favourite liver recipe at the moment is a special take on Liver and Onions I adapted from a Nigella Lawson recipe.
Fry about 2 rashers of bacon per person, plus one for snacking on. While that's on the go, chop some onions (about one onion per person and one for the pot), and slice the liver into 1/2 inch strips. If the liver is from an adult animal or from a source I don't know, then I soak it in
milk. If I know the animal, then I will often just make certain it's clean and cut out the chewy bits.
When bacon is nice and crispy, put it to one side, and slow fry the onions. The goal is to caramelise the onions, which involves frying them low and slow. If this takes less than half an hour, then the burner is too hot. If it takes just over an hour, you're on the right track. Personally, I find this method of cooking onions to be the easiest to digest, so I pay a lot of attention to make sure they are lovely and sweet.
Remove onions, put on paper towel to drain off any extra grease. Add oil to the fry pan if necessary. Crank up the heat to med-high. Coat the liver in flour if desired. Fry the liver so that it's cooked to the point you like it. It cooks pretty fast as the strips are so small. Put liver on the plates, take pan off burner.
Deglaze the pan with balsamic vinegar and
water mixed about 50/50. Stir this around until it becomes a syrupy sauce. Put it back on the heat to cook if necessary. Don't skimp on the vinegar, this is what make the dish!
Add onions to liver (on or beside), pour a generous helping of sauce on top, season with salt and pepper if desired, crumble bacon on top.