Wash rosehips well. Remove stems and flower attachments. Bring the rose hips and approx. 3/8 l water to the boil in a pot, cover and cook for approx. 1 hour until soft. Mash the mixture with a potato masher and pass through a fine sieve.
Wash the thyme, shake dry. Set aside a little to garnish, pluck the rest. Dab medallions dry. Fry them in hot oil for about 3 minutes on each side until brown. Season with salt and pepper, keep warm.
Briefly sauté the thyme in hot frying fat. Deglaze with stock, stir in rosehip paste. Season with salt, pepper and some sugar. Bring to the boil and simmer for about 4 minutes. Season to taste again.
Cover the beans and cook in little boiling salted water for about 5 minutes.
Heat clarified butter in a pan. Fry the potato noodles until golden brown. Peel and finely dice the onion. Drain the beans. Heat butter in the pot and fry onion until transparent.
Add the beans, toss briefly. Arrange everything, garnish with thyme.