Macaroni and Cheese

6 lbs. macaroni
1 lb butter [ or margarine]
2 1/2 cups flour
1/4 cup salt [opt.]
1 tsp. black pepper
2 1/2 gal. milk
5 lbs. cheese, cubed
buttered bread crumbs

Cook macaroni as directed, until just tender. Drain well.

Make a thin white sauce, by melting butter, stir in flour, add milk slowly, stirring carefully, and cooking slowly until slightly thickened.

Combine macaroni. and sauce, and add 2/3 of the cheese. Spread into 5 greased 10 x 16 inch baking pans. Sprinkle remaining cheese over top. Top with buttered bread crumbs if desired.

Bake at 350� F. for about 30 minutes or until heated through and slightly browned.

Serves about 50 people.