Potatoes Au Gratin

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   Pre-heat oven to 375 degrees.

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   Place the onion and margarine into a skillet. Cook until onion is

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   tender.

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   Add the flour, salt, pepper, and mustard. Cook over low heat,

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   stirring constantly. When the mixture is smooth and bubbly, remove from

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   the heat.

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   Add the milk and cheddar cheese. Place back on burner and heat until

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   boiling, constantly stirring the mixture. Continue boiling and stirring

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   for one minute.

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    Put the potatoes in a one and one half quart casserole dish. Pour the

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    cheese sauce over the potatoes and place in oven uncovered. Bake for one

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    and one fourth to one and one half hours until top is brown and bubbly.

* Per serving · 4 servings · Values may vary.

No additional tips available.