create a photo of the dish using cooking technology: Marinate the fillet in salt and black pepper. In a hot frying pan with the addition of vegetable oil, fry the prepared tenderloin. Then add butter, garlic, red wine to the pan and glaze. We cook the steak before medium well roasting in a steam convector, heated to 175 ° C, for 4-5 minutes Garnish: prepare the potatoes: boil in salted water with salt. Leave the bay leaf for 15-20 minutes until tender. As soon as the potatoes are cooked, rub them through a sieve with butter and bring them to taste with salt and ground black pepper.