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Party Potatoes Au Gratin

Total Time

Prep: 25 min. Bake: 3 hours


16 servings

Hearty helpings of these cheesy spuds will please hungry folks in a hurry. The rich, creamy sauce makes this recipe of my mother's the one folks request most. The potatoes are just as delicious the next day, reheat in the microwave with a little added milk.—Debbie Carlson, San Diego, California
Party Potatoes Au Gratin Recipe photo by Taste of Home


  • 1/2 cup butter, cubed
  • 1/3 cup all-purpose flour
  • 2 teaspoons salt, divided
  • 2 teaspoons pepper, divided
  • 4 cups whole milk
  • 7 large potatoes, peeled and thinly sliced
  • 2 medium onions, chopped
  • 8 cups shredded cheddar cheese


  1. In a large saucepan, melt butter. Stir in flour, 1 teaspoon salt and 1 teaspoon pepper until smooth. Gradually add milk; bring to a boil. Cook and stir for 2 minutes or until thickened and bubbly; set aside.
  2. Combine the potatoes, onions, cheese, remaining salt and pepper. Place a third of the mixture in a greased 5-qt. baking dish; top with a third of the sauce. Repeat layers twice.
  3. Cover and bake at 350° for 2-1/2 hours. Uncover; bake 30 minutes longer or until potatoes are tender.

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Average Rating:
  • cast_iron_king
    Jan 1, 2019

    Excellent, easy and delicious dish! Like another reviewer, I cut the recipe in half and baked it for a much shorter time (45 minutes covered, about 15 minutes umcovered). Sauce is really creamy and cheesey! A great, hearty side dish!

  • Martha
    Dec 1, 2018

    I cut this recipe in half. It is delicious, hearty, and truly good home cooking. However - a couple of things I will change next time - cut in half, with four cups cheese, was a little bit much, and I LOVE cheese! Also, I think it woul be easier and more exact to layer the onions and cheese separtely, rather than combine them. For a "1/2" recipe I cooked it for 45-minutes, checked, an cooked it 10 more minutes. An indulgent once-in-a-while tasty recipe!

  • OhioAmanda
    Dec 21, 2017

    These were delicious. Very creamy and cheesy!

  • sasinc
    Mar 23, 2015


  • tbogg
    Nov 28, 2014

    At first, the sauce looked like gravy served with chicken-fried steak, but looks can be deceiving. This was the yummiest, creamiest, and most buttered gratin dish I have made. Yummy! Thank you!