Au Gratin Potatoes

Au Gratin Potatoes

13 lbs. potatoes
1 tbsp. salt
12 oz. margarine
6 oz. all-purpose flour
1 tbsp. salt
3 qts. milk
24 oz. cheddar cheese, shredded
12 oz. bread crumbs
8 oz. margarine, melted

Peel and slice potatoes. Bring to boil and cook until just tender. Drain and sprinkle with salt.

Melt margarine. Add flour and salt. Stir until smooth. Cook 5-10 minutes.

Add milk gradually while stirring. Cook until thickened.

Add cheese to sauce and stir until cheese is melted. Pour over potatoes. Scale into two 12x20x2-inch baking pans.

Combine crumbs and margarine. Sprinkle over top of potatoes, 10 oz. per pan. Bake at 350 degrees F for 25-30 minutes.

Note: 1 lb. 10 oz. sliced dehydrated potatoes, reconstituted in 5 qt. boiling water, and 1 1/2 oz. salt may be substituted for fresh potatoes.

Serves 55-60