For the fried potatoes, cook potatoes with skin in boiling water for about 20 minutes. Drain, rinse with cold water, peel and let cool. Clean, wash and cut spring onions into rings.
For the crust, clean the mushrooms, wash and chop them if necessary. Peel garlic and chop finely. Wash thyme, shake dry and pluck off the leaves. Heat 3-4 tablespoons of oil in a large pan. Fry the mushrooms in it.
Mix garlic, thyme and porcini powder into the mushrooms and fry briefly. Season with salt and pepper and remove.
Preheat oven (electric cooker: 100 °C/circulating air: 80 °C/gas: see manufacturer). Rinse steaks, pat dry and cut the fat edge crosswise several times. Heat 2 tablespoons of oil in a pan. Brown the steaks on each side, season with salt and pepper.
Remove and place in a flat casserole dish. Spread the mushroom mixture on top. Roast in a hot oven for about 20 minutes.
In the meantime cut the potatoes into slices. Fry the bacon in the pan in hot frying fat until crispy, remove. Heat clarified butter in the pan and fry the potatoes for 10-15 minutes until golden brown.
Fold in spring onions and bacon. Season the fried potatoes with salt and pepper. Arrange the steaks with the fried potatoes.