Cheese, Broccoli and Chicken Soup

1/2 c butter
1 c flour
11 c water
3 cubes chicken bouillon
2 lbs chicken,cut into bite sized pieces
2 heads broccoli, cut into florets
1 1/2 tsp salt
1 tsp pepper
1 c light cream
3 cups shredded cheddar cheese

In a 5 quart pot, melt butter. Mix in flour, stirring until a thick paste forms. Remove from pot and set aside.
In the same pot, combine water, bouillon, chicken, broccoli, salt and pepper. Bringto a boil over high heat. Reduce heat and simmer for 45 minutes.
Stir in flour mixture a little at a time until soup thickens. Simmer for 5 minutes.
Reduce heat and stir in cream. Mix in cheese 1 cup at a time untul melted.