Au Gratin Potatoes

Au Gratin Potatoes

4 cups peeled and thinly sliced potatoes
1/2 cup chopped onion
1/4 butter
1 Tablespoon flour
1 teaspoon salt
1/4 teaspoon pepper
2 cups milk
2 cups shredded cheddar cheese
1/4 cup dry bread crumbs

Cook and stir onion in butter in good-sized pot until onion is tender. Stir in flour, salt and pepper. Cook over low heat, stirring constantly, until mixture is bubbly; remove from heat. Stir in milk and 1-1/2 cups cheese. Heat to boiling, stirring constantly. Boil and stir 1 minute. Place potatoes in your baking pan and pour the cheese sauce on the potatoes. Cook uncovered in 325* oven 1 hour 20 minutes or in 375* oven for 1 hour.

Mix remaining cheese and the bread crumbs; sprinkle over potatoes. Cook uncovered until top is brown and bubbly, 15-20 minutes longer.

This serves 6 and I triple the recipe to serve 18.