Pat the meat dry and cut into 4 medallions. Wrap 1 bacon slice around each and tie with kitchen string. Heat the oil in an ovenproof pan or a flat roasting pan. Brown the meat on each side.
Season with salt and pepper.
Continue roasting in the preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: level 3) for approx. 9 minutes. Remove, wrap in aluminium foil and leave to rest until serving.
In the meantime peel and finely dice the shallots. Deglaze the gravy with wine and beef stock. Add shallots, bring to the boil and boil down over a high heat for about 10 minutes.
Add vodka and tomato juice, bring to the boil and simmer for another 5 minutes. Season to taste with pepper and possibly celery salt. Arrange medallions and sauce. Serve with potato gratin or polenta.