Gallagher's Cheddar Cheese Soup Recipe

Place water in soup pot over high heat. Add carrots, celery and green onions; bring to boil and boil 5 minutes; set aside, but do not drain. Melt butter in a large stockpot over medium heat and add onion; sauté 1 minute, then add flour, blending well.

In a large saucepan, bring milk and broth to boil. Whisk broth mixture into flour mixture with a wire whisk. Stir in cheese, salt, pepper and cayenne. Stir in mustard and the cooked vegetables, including the water in which they were cooked. Bring to a boil and serve immediately.