Clean and wash spring onions and cut into fine rings. Wash and halve the grapes. Roast hazelnuts in a pan without fat until golden brown. Put them on a plate. Melt the fat in a pot.
Sweat flour in it. Deglaze with white wine. Add stock and milk while stirring and let simmer for about 5 minutes. Season with salt and pepper
Wash the meat, dab dry, season with salt and pepper. Heat oil in a coated pan. Fry the meat at medium heat while turning for about 10 minutes. Meanwhile, prepare noodles in boiling salted water according to package instructions. Put sugar and grapes in a small pot and caramelise slightly over medium heat.
Deglaze with 2 tablespoons of water. Remove meat from the pan and cut into bite-sized pieces. Pour the pasta into a sieve and immediately arrange on plates with the meat, sauce and grapes. Sprinkle with hazelnut leaves and spring onions