1 Heat the oil in a large pan and tip in the onion, potatoes and bacon. Cook for 5 minutes ... vegetables are completely tender. 3 Blitz the soup with a hand blender, then pour in the milk.
Add the stock and potato and cook for eight minutes or until the potato has softened. To serve, season, to taste, with the salt and freshly ground black pepper and pour into a clean bowl.
Add the sweet potato, garlic and lentils to the bacon and vegetables ... a stick-blender if preferred – or you can leave the soup as is. Serve. If you add cold stock rather than just-boiled ...