Ingredients
6
medium potatoes, peeled and thinly sliced
1
small onion, finely chopped
Directions
1.
Preheat oven to 350ºF.
2.
Heat 3 tablespoons of butter in a saucepan over low heat until melted.
3.
Blend in flour, salt and pepper.
4.
Cook over low heat, stirring constantly, until mixture is smooth and bubbly.
5.
Gradually stir in milk, 1/2 cup at a time.
7.
Boil and stir 1 minute.
8.
Arrange potatoes in greased 2 quart casserole in 3 layers, topping each layer with part of the chopped onions and 1/3 of the sauce.
9.
Dot the top with the remaining 1 tablespoon of butter, broken into little pieces.
10.
Cover and bake until potatoes are tender, about 60-70 minutes.
11.
Let stand 5 to 10 minute before serving.
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