Liver of the innkeeper

Preparation:

Preparation: Cut three small onions into thin slices and brown them in 1 tablespoon of melted butter in a pan. Put the slices of liver in it, brown them on both sides, then remove them and place them on the plates. In the pan with the onions, salt, pepper, cook over high heat for 3 minutes 1/2 glass of red wine; then pour this sauce over the liver and serve.