Mom's Au Gratin Potatoes

Mom's Au Gratin Potatoes


(1 vote) 5 1

This au gratin potato recipe is so easy and delicious! You can half or double again the cheese sauce amounts if you like your potatoes saucy. This recipe is pared down from a restaurant recipe for 10 lb potatoes.

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Time needed

10 min preparation + 1 hour cooking

Serving Size / Yield

8 servings


  • 2 1/2 lb. potatoes, cooked, cooled, peeled and sliced
  • 3 1/8 C. milk, heated to warm (in the microwave)
  • 1/4 C. minced onion
  • 1/4 C. butter
  • 1/4 C. flour
  • salt and pepper to taste
  • 1/2 - 3/4 C. shredded American or white Cheddar cheese
  • enough cheese slices to cover the top

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Cook the potatoes in a covered pan in their jackets in salted water until tender. Cool then peel the potatoes and slice them. In a heavy saucepan, saute the onions in the butter. Add flour and slightly brown it. Add the warm milk, cheese, salt and pepper. Cook until thickened and cheese is melted. Gently mix the cheese with the potatoes. Put in a 9x13-inch pan and cover the top with the cheese slices. Bake at 350 degrees for 1 hour or until center is hot. 

Reviews (1)

  • oh a splash of nostalgia just took hold of me --- the number of times i watched my mother make these potatos

    Flag as inappropriate marycaesullivan  |  April 7, 2010

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