Make this recipe a recipe that people in that category can eat. categories: ['low_fat'], recipe: melt butter in a large saucepan, add leeks, potatoes and onion, stir well to coat with the butter. cover tightly with a piece of grease proof paper and cook on a low heat stirring frequently for about 15 mins until softening but not colouring. add stock and milk and season with salt and pepper. bring to the boil and simmer gently for about twenty mins until vegetables are tender. transfer soup to a food processor or blender and blend until smooth. serve and enjoy!

Target recipe: mix onion, potato, corn and bay leaf in large bowl. cover and microwave on high 15 minutes. add milk, salt and pepper, cover and microwave on high 5 minutes, stirring once. stir in hot stock. puree in a processor or use a hand blender. adjust seasonings, add green onions. place in soup bowl and swirl in a little sour cream.