Potatoes Au Gratin is an easy cheesy favorite potato recipe! Thinly sliced potatoes and onions are smothered in a quick cheesy sauce and baked until golden.

Au Gratin Potatoes are a family favorite recipe and perfect for Sunday supper or as a make-ahead holiday side dish!

potatoes au gratin in a baking dish with a forkView Post

This Potatoes au Gratin recipe makes easy cheesy potatoes, similar to scalloped potatoes but loaded with rich cheesy flavor. They are the perfect holiday dish next to a baked ham or even Roast Beef Tenderloin or pork tenderloin!

Cheese for Potatoes au Gratin

What is the best cheese for potatoes au gratin?  When making Gratin potatoes, choose cheeses that have lots of bold flavors.  Our top choices are varieties with a sharper flavor such as sharp cheddar, parmesan, and/or Gruyere (or swiss).

Gruyere cheese adds a rich flavor to au gratin potatoes that truly cannot be matched; if you can get it, I highly recommend that you do! If Gruyere isn’t available use provolone or swiss for a similar flavor!

PRO TIP: For a smooth sauce and best results, shred your own cheese from a block. Pre-shredded cheeses will work but don’t melt as nicely.

ingredients for potatoes au gratin


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Holly is a wine and cheese lover, recipe creator, shopping enthusiast and self appointed foodie. Her greatest passion is creating in the kitchen and making deliciously comforting recipes for the everyday home cook!
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Recipe Rating


  1. I used pepper cheese & instant potatoes to thicken my cheese sauce. I poured said cheese sauce over pre-cooked (red potatoes) I had leftover in the fridge. Added 1/2 Vadalia onion and 1/2 cup chopped green onions & covered everything in nearly expired sliced American cheese (12 slices). The coup de gras was chopped up deli ham meat over the cheese. 400° for 40 minutes was perfect. Delicious meal !!!5 stars

  2. the absolute BEST gratin i’ve ever made! we subbed out the gruyère for swiss and it tasted stellar! never had this dish with onions but i will only be making it this way from now on.5 stars

  3. Varied the cheese to 1 C white sharp cheddar, 1/2 C Gruyere and 1/2 C Colby Jack and added minced garlic to the rue. I will definitely be making this again!5 stars

  4. If I wanted to make a truffled version of this could I put a tablespoon or so in the cheese sauce? Wondering if others thought this would go well with the recipe5 stars

    1. I haven’t tried it so I can’t say for sure Cheesy, but I think that sounds wonderful! If you try it I would love to hear how it turns out!

  5. This recipe was easy, tasty, and versatile! The cheese can be different, and it can be seasoned in a variety of ways. It is indeed easy and cheesy… :-)5 stars

  6. I’m the cook that needs a recipe and hope it turns out, mostly does. I followed this as written and so impressed with this dish, yhe flavors were so good, my husband raved about it.