Wash the potatoes and cook for about 20 minutes. Then drain, quench, peel and let cool off
Dice the bacon. Peel and chop the onion. Clean, wash and cut leek into rings. Drain mushrooms. Wash and dab the meat and cut into 8-12 slices. Heat oil. Fry the meat for 3-4 minutes on each side. Season and take out
Cut the potatoes into slices. Skip the bacon in the frying fat. Fry the onion, mushrooms and leek. Remove. Fry the potatoes in the frying fat for approx. 10 minutes, season
Heat 1/8 l water and cream. Bring sauce powder to the boil while stirring. Stir in peppercorns
Fill potatoes, vegetables and fillets into an ovenproof pan, add sauce. If necessary, bake in a hot oven (electric cooker: 200 °C/circulating air: 175 °C/gas: level 3) for approx. 10 minutes
Drink: cold beer