Whip up this easy, delicious soup as a light supper or warming lunch when you need a little comfort – You'll love its beautiful, silky texture.
Melt the butter and oil in a large saucepan. Add the onions and celery, and gently cook until really soft – about 15 mins.
Remove from heat and using a hand blender, blitz until smooth (adding a bit more stock or water if the soup is too thick).
Season to taste with salt and pepper. Reheat before serving, sprinkle with chopped parsley.
For the winter squash - you can buy whole squash and prepare them yourself, or buy bags of ready to use.