Peel pumpkin, onions and carrot; cut into pieces. Melt the butter fry the bacon until crispy and then put all vegetables in pan. Add chicken stock cube and water (approximately cover all the ingredients). Bring to boil; reduce hear, simmer covered until pumpkin is tender. Puree in blender, until smooth…. Chill. Serve with spoonful of sour cream or add some milk by option.