Potato-Leek Soup

Directions

1. In a large Dutch oven, saute leeks in 1/4 cup butter until tender. Add potatoes, carrots, celery, 1/2 teaspoon salt and water. Bring to a boil. Reduce heat; cover and simmer until vegetables are tender, 20-25 minutes.
2. Meanwhile, in a medium saucepan, melt remaining 1/4 cup butter. Stir in flour, pepper and remaining 1/2 teaspoon salt until smooth; gradually add milk and bouillon. Bring to a boil; cook and stir until thickened, about 2 minutes. Stir into vegetables. Simmer, stirring occasionally, until heated through. If desired, top with chopped chives.