Cut the meat into 12 slices and flatten it a little. Cut the onions into rings. Peel the apples and cut into approx. 1 cm cubes.
Fry the meat, season with salt and pepper. Add the onion rings and sauté until translucent, then add the apple cubes and sauté briefly. Take the meat out of the pan and keep it warm.
Add the stock, cream, wine and horseradish, bring to the boil and season with salt and pepper. Put the meat in the sauce, let it steep again for about 3 minutes, decorate with chives.