Peel squash, remove seeds and dice. Steam squash with onion, garlic and sliced leeks into 2 tablespoons of butter for about 10 minutes. Add chicken broth. Salt, pepper and cook for 25 to 30 minutes.
In a blender, reduce the soup to cream. Set creamy soup in a casserole with cream. Heat and serve in a large bowl.
Chef’s note
Sprinkle finely chopped chive and serve with maple caramelized croutons with grated cheese.