Liver and Onions

In 10-inch skillet, melt butter over medium-high heat. Cook onions in butter 4 to 6 minutes, stirring frequently, until light brown. Remove onions from skillet; keep warm.

Coat liver with flour. In same skillet, heat oil over medium heat. Cook liver in oil 2 to 3 minutes on each side or until brown on outside and slightly pink in center, returning onions to skillet during last minute of cooking. Don't overcook or liver could become tough. Sprinkle with salt and pepper.