Peel and quarter the apple, remove the core. Cut quarter into thin slices. Dab meat dry, cut in half and beat very flat between films. Melt the butter in a pan and fry the escalopes for 3-4 minutes while turning them.
Season with salt and pepper. Remove and keep warm.
Place the apple slices in the pan and fry gently. Remove and keep warm. Pour the cider into the pan, loosen the frying set. Add cream and simmer for about 10 minutes. Season sauce with salt and pepper.
In the meantime, wash the thyme, shake dry and chop coarsely. Add meat, thyme and apples to the sauce and sprinkle with pepper. Heat briefly and serve.