SWISS BROCCOLI SOUP

This recipe was on an old yellowed newspaper clipping in a box of recipes from my late mother's estate. I have no idea what newspaper it came from. The picture is a modern day one from The Huffington Post.

1 cup instant nonfat milk
3 tbsps flour
1/2 tsp salt
1/8 tsp black pepper
1/8 tsp garlic powder
2 1/4 cups water
1 can (10-oz) condensed chicken broth, undiluted
1/4 cup butter
1/4 cup chopped green onion
1 pkg (10-oz)frozen chopped broccoli, cooked and drained
1 1/2 cups shredded Swiss Cheese

Combine the dry milk, flour, salt, pepper, and garlic powder together in a 3-qt heavy saucepan. Stir in the water and chicken broth, whisking until smooth. Bring to a boil over medium heat, stirring constantly. Boil and stir for 1 minute. In another pan, saute onion in butter until tender--about three minutes. Stir the onion/butter and broccoli into the thickened mixture. Remove from the heat and slowly stir in the cheese until all cheese is melted. If necessary, return to a low heat to get cheese melted. Do not boil! Serve immediately.