Toss in 30 or so *cooked chestnuts, stir around until they are coated with the sauteed mixture. Add the carrot, celery and onion and cook over moderately low heat, stirring, until softened, about 10 minutes. Bring to a boil, then turn the burner down to simmer until the chestnuts are tender. More Soup Recipes. Chestnut Soup In a large heavy soup pan, saute a chopped large onion, three tall thin carrots, and the heart of the celery with their tender tops with a tad of oil or butter. This smooth, rich-tasting chestnut soup makes a great winter night treat. It may be about to become your favorite Winter soup! French chestnut soup is creamy, flavorful, hearty and nourishing. Melt the butter in a medium sauce-pan. Serve in hot bowls, swirl some cream over the top and sprinkle with chopped parsley and pepper. https://thishealthykitchen.com/creamy-chestnut-soup-vegangf This soup is a combination of delicious chestnuts, onion, rosemary, a bouillon cube, milk and butter. Add several (6 or so) cups of cold water.