Cleaning mushrooms, washing them. Peel and slice the onions. Finely dice bacon
Rinse the escalopes if necessary, dab dry and cut in half. Fry in hot oil in a large pan for 1-2 minutes on each side in portions. Season and place in a greased ovenproof dish
Fry bacon in hot frying fat until crispy. Take out 1 tablespoon. Put onions and mushrooms in the pan and fry until golden brown. Season with pepper and possibly salt. Stir in 3/8 l water, broth and thyme. Bring to the boil and simmer for 1-2 minutes. Stir 200 g sour cream and starch until smooth. Stir into the sauce and bring to the boil again briefly. Season to taste and pour over the escalopes
Gratinate in the preheated oven (electric cooker: 225 °C/circulating air: 200 °C/gas: level 4) for 10-12 minutes. Place the rest of the sour cream on top, sprinkle with the remaining bacon and garnish
Drink: cold beer