Cook the pasta in 3-4 l boiling salted water (approx. 1 teaspoon salt per litre) according to the instructions on the packet. Dice the gorgonzola. Coarsely chop the nuts. Wash pears, quarter them, remove seeds and cut into slices.
Lightly roast the nuts in a pan without fat and remove them. Heat the butter in the pan. Fry the pear wedges for about 2 minutes. Deglaze with vinegar, bring to the boil briefly.
Drain the pasta and put it back into the pot. Add pears and nuts and mix everything briefly. Season to taste with salt and pepper. Serve the pasta and spread the gorgonzola on top. Drizzle with grape seed oil and Crema di Balsamico.