Best Scalloped Potatoes Recipe
Ingredients for Scalloped Potatoes:
– 3 pounds potatoes, thinly sliced
– ½ onion, thinly sliced
– 9 tablespoons all-purpose flour, divided
– 6 tablespoons butter, diced and divided
– Salt and ground black pepper to taste
– 3 cups whole milk, or as needed
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