Potato leek and bacon soup

Melt butter in a large saucepan over moderate heat. Cook leek, potatoes and garlic for 5 minutes, stirring, until leek is soft. Add stock and milk. Bring to the boil; reduce heat and cover. Simmer 20 minutes or until potatoes are tender. Cool 10 minutes. Blend in batches until smooth.

Meanwhile, heat an oiled medium frying pan over high heat; cook bacon, stirring, until crisp. Add bacon to soup with cream. Stir over moderate heat until hot. Remove 2 cups of the soup and reserve. Stir chives into the remaining soup; season to taste and serve.