Instructions: Fry onions gently until beginning to brown. Dust liver with flour, shake off excess and put into pan, increasing heat and cook for 2 minutes, turning continuously. Add balsamic, salt and pepper and cook until to your taste - we only cook for a further minute and then serve, sprinkled with chervil.

We eat this with rosemary garlic potatoes - cut potatoes into small chunks and saute in oil in the oven, with sprigs of fresh rosemary and cloves of garlic.

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