Wash the meat, dab dry. Rub with salt and pepper. Clean, wash and chop the leek
Place the meat and leek on the fat pan. Bake in a hot oven (electric cooker: 200 °C / convection oven: 175 °C/ gas: level 3) for approx. 1 1/2 hours. Pour in approx. 1/2 l stock gradually
Peel and chop the onion. Fry in hot oil. Add lentils, deglaze with 3/4 l stock. Cover and simmer for 60-70 minutes. Clean, wash and chop the turnip and carrots. Add rutabaga about 25 minutes, carrots about 15 minutes before the end of the cooking time to the lentils, cook with them
Remove the roast, sieve the stock. Boil up with cream. Thicken sauce, season to taste. Arrange everything. With it: Boiled potatoes
Drink: rosé wine or beer