Preheat oven (electric cooker: 160-170 °C/circulating air: 140 °C/gas: level 1-2). Cut pumpkin into quarters, remove seeds and bake with skin in the oven for about 40 minutes until soft (be careful not to let it get too dark, otherwise reduce the temperature)
For the risotto, peel onion and garlic and dice finely. Heat 1 tablespoon of oil. Add rice and sauté briefly. Season with salt and pepper. Deglaze with wine and cook completely. Fill the risotto with stock and simmer gently until all the liquid has evaporated
Meanwhile, cut the pumpkin into small pieces and puree with the skin. Season to taste with salt and pepper. Coarsely grate the parmesan
For the chestnut mixture wash sage, shake dry and cut into strips. Coarsely crumble the Amarettini. Cut the chestnuts into slices. Brown 50 g butter in a frying pan to nut butter (melted light brown butter). Fry the chestnuts in it while turning. Sweat the sage briefly. Amar
Pumpkin puree, 50 g butter and Parmesan cheese stir into the risotto. Bring to the boil again and simmer until the risotto has the optimal binding. Serve the risotto with the chestnut mixture