Old-fashioned Scalloped Potatoes

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Details

7 Ingredients

• 2 cups thinly sliced onion
• 9 Tbsps unsalted butter
• 6 Tbsps all-purpose flour
• 3 1/2 cups milk
• 2 1/2 lbs boiling potatoes
• 1 1/2 cups coarsely grated sharp Cheddar (about 6 ozs)
• 1/3 cup dry bread crumbs