Wash the meat if necessary and pat dry. Cut schnitzel and ham in half crosswise. Wash parsley and pluck off all but a few leaves.
Cover each cutlet with ham and parsley. Then fold them over and pin them with skewers. Spread into a large greased casserole dish or fat pan
Peel and finely dice the onion and sauté in 1 tbsp. hot fat. Dust with flour and sauté. Stir in 1/4 l water, cream and stock, bring to the boil. Simmer for about 5 minutes. Crumble cheese. Melt bit by bit in the sauce. Season to taste
Pour the sauce over the escalopes. Bake in the preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: level 2) for approx. 45 minutes. Garnish with the rest of the parsley