Au Gratin (Scalloped) Potatoes

6 medium potatoes (2 lb)

¼ cup butter or margarine

1 medium onion, chopped (1/2 cup)

1 tablespoon flour

1 teaspoon salt

2 teaspoon pepper

2 cups milk

3 cups shredded sharp cheddar cheese (or more J)

¼ - ½  cup dry bread crumbs (any flavor)

Paprika

-Heat oven to 375ºF.

-Scrub potatoes but do not peel. Cut into 1/8-inch slices to measure about 4 cups. I use a food processor with the “slicer” attachment, makes perfect little slices for this.

-Melt butter in 2-quart saucepan over medium heat. Cook onion in butter until tender/cooked. Stir in flour, salt and pepper. Cook, stirring constantly, until bubbly; remove from heat.

-Stir in milk. Little by little add 2 cups (or more) of the cheese stirring in until melted. Heat to light boil, stirring constantly. Boil and stir 1 minute.

-Add a small amount of cheese sauce, just enough to cover bottom of 9x13 dish

-Add layer potatoes, add some sauce, add layer of potatoes, add some sauce. Usually about 3 layers of potatoes. Top off with rest of sauce

-Bake uncovered 1 hour. Add remaining shredded cheese on top. Sprinkle with breadcrumbs and paprika. Bake uncovered 15 to 20 minutes longer or until top is brown and bubbly.