- 1/4 cup butter
- 1 onion, chopped
- 1/4 cup all-purpose flour
- 3 cups chicken broth
- 3 cups milk
- 1 pound shredded Cheddar cheese
- In a 3 quart saucepan over medium-high heat, melt butter or margarine. Add onion and cook until tender, about 5 minutes. Stir in flour and cook until flour has blended with onion mixture.
- Add chicken broth and cook, stirring constantly, until mixture is slightly thickened. Add milk and heat just to boiling, stirring constantly.
- In covered blender at medium speed, blend about 1/4 of soup mixture at a time until smooth. Return to saucepan and, over medium heat, heat just to boiling. Remove from heat.
- With wire whisk or slotted spoon, stir in cheese until melted. If cheese does not melt completely, cook over very low heat about 1 minute, stirring constantly.