Cheese Broccoli Soup

2 pkg frozen broccoli florets

1 1/2 c. diced celery

1/2 c. diced onion

5 chicken bouillon cubes

1- 16 oz. jar Cheez Wiz

2 cubes margarine

1 c. flour

6 c. hot water

Cook broccoli, celery and onion together until they are tender. Drain. Melt both squares of margarine. Add flour to make a paste. Add hot water and bouillon cubes. Add Cheez Wiz. Keep stirring until thick. Add vegetables. Salt and pepper to taste. Serve.