Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   8      ounces        elbow macaroni -- 2 cups, dry
   2      tablespoons   nonfat dry milk
   2      tablespoons   all-purpose flour
   1      tablespoon    butter or margarine -- melted
   1 1/4  cups          boiling water
   3      cups          grated american cheese -- 12 oz., divided
     1/4  teaspoon      salt

Preparation:

Cook macaroni according to package directions; drain and set aside. Heat oven to 350F. In a large bowl, mix dry milk, flour and butter. Gradually add boiling water, beating constantly. Add 11/2 cups cheese and continue beating until smooth and creamy. Stir in macaroni, 1 cup of the remaining cheese and salt. Transfer to lightly greased 2-quart baking dish. Cover with foil. Bake 25 minutes Remove foil. Sprinkle with remaining 1/2 cup cheese. Continue baking 1 minutes, or until cheese melts. Source: Houston Chronicle, Nov. 13, 1996, p. 4F