Beef Steaks With Balsamic Vinegar

Preparation:

Preparation: Keep aside a small knob of butter and, in a pan, let the rest heat up together with the oil. Place the steaks in the pan, cook them over high heat for a few minutes on both sides, salt them at the end of cooking, transfer them to a serving dish and keep warm. Season the chopped shallots in the sauce, add the knob of butter and let it thicken slightly. Add the balsamic vinegar, stir quickly, remove from the heat and pour the very hot sauce over the steaks. Sprinkle them with chopped parsley and serve.