Best baked potato soup

Place bacon in a large, deep frying pan. Cook over medium heat until browned. Drain, crumble and set aside.

In a large stock pot, melt the margarine over medium heat. Whisk in flour until smooth. Gradually stir in milk, whisking constantly until thickened. Stir in potatoes and onions. Bring to the boil, stirring frequently.

Reduce heat and simmer 10 minutes. Mix in bacon, cheese, soured cream, salt and pepper. Continue cooking, stirring frequently, until cheese is melted.