Crack Soup

John says this soup is as addictive as Crack...hence the name.

1 cup chopped carrots
1 cup chopped celery
1 cup chopped onion
1 1/2 cups chopped potatoes
3-4 chicken breasts, chopped, boiled and reserve 4 cups broth
1/3 cup butter
1/3 cup flour
3 cups milk
1 pound velveeta, cubed

Pour reserved 4 cups of chicken broth into stewpot. Add vegetables and boil, covered, for 15 minutes. In saucepan, melt 1/3 cup butter, add 1/3 cup flour to for 1 minute. Then add slowly, 3 cups milk. Stir constantly over medium heat until thick and bubbly. Add to vegetables. Add velveeta. Stir till melted. Add chicken.