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Garlic Parmesan Au Gratin Potatoes

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Comforting Garlic Parmesan Au Gratin Potatoes are the perfect side to go with any meal. They are practically effortless and the cheesy potato goodness is unforgettable. A cheesy au gratin that is loaded with tangy parmesan and garlic.

potato dish with parsley on top

Red potatoes steal the show in these cheesy red potato au gratin side dish. They are tender, delicious, and a family favorite. If you’re looking for a complete meal, check out my Instant Pot scalloped potatoes with ham recipe.

Layered potatoes, minced garlic, and a creamy parmesan sauce combine to make this a classic dish. It’s ideal for holidays and potlucks too. A cheese potatoes recipe that kids and adults will both enjoy.

🧀 Why This Recipe Works

  • Only need 9 ingredients
  • A homestyle recipe like grandma used to make
  • Cheesy and creamy flavors
  • Crowd-pleasing
  • No-fuss oven-baked potatoes casserole
  • Inexpensive
  • Versatile
  • Homemade cheese sauce for potatoes
  • Total comfort Food
  • Minimal effort needed

🥔 Ingredients

  • Olive Oil
  • Red Potatoes
  • Minced Garlic
  • Heavy Cream
  • Milk
  • Salt
  • Pepper
  • Parmesan
  • Fresh Parsley

🧄 How To Make

images on how to make au gratin potatoes

1. Warm the oven and prepare the casserole dish by adding olive oil.

2. Thinly slice the potatoes and add them to the casserole pan. I recommend using a mandoline for evenly sliced potatoes.

3. Sprinkle with salt and pepper and add more potatoes. Add some minced garlic as you add layers of potatoes.

4. Combine the milk and heavy cream and pour on top of the potatoes. Sprinkle with shredded parmesan.

5. Add tin foil and bake for 1 hour and 15 minutes. Take the foil off of the potatoes and bake for an additional 10 minutes.

6. Serve your cheesy au gratin potatoes with parsley and enjoy hot!

🍽️ Expert Tips

  • It’s important to cut the potato slices so they are evenly sized. Otherwise, the potatoes will not cook evenly.
  • You can exchange the milk for any other milk alternative.
  • Prefer a different kind of cheese? No problem, swap the parmesan for the pepper jack, cheddar, or mozzarella.
  • Look for clean and smooth potatoes that show no eyes or softness or bruising.
  • You can swap red potatoes out for a russet, Yukon gold, or even another type of potato.
white casserole filled with cheesy potatoes

👩‍🍳Recipe FAQs

Can I leave the skin on the potatoes?

Yep, but the texture is going to be different if you do. Red potatoes have very thin skins so it’s not as offensive as a thick skinned potato. Try it and see what you like.

Can I use different potatoes?

Sure, we enjoy the texture and the way red potatoes taste, but you can certainly use Yukon gold, russets, or another variety. The recipe is very versatile so making adjustments is easy.

How do you store leftovers?

Let the homemade cheesy scalloped potatoes cool down all the way. Then put them in an airtight container. They will last in the fridge for 3-4 days.

How do I reheat au gratin potatoes?

Place the easy potatoes on a microwave-safe plate. Cover with a paper towel and microwave until hot.

Additionally, you can reheat them in the oven. Heat oven to 350 degrees and heat them for 10-15 minutes or until hot.

What does au gratin potatoes mean?

Au gratin refers to scraping and a crispy baked topped. So this slice potatoes in the oven topped with parmesan cheese is the perfect fit for the name used.

close up view of cheesy potatoes in casserole pan

More Comforting Potato Side Dishes

Tried this recipe? Make sure to rate ⭐️⭐️⭐️⭐️⭐️ and leave a comment to let me know how you like it! Plus get more Instant Pot Recipes or Home Cooked Recipes Facebook Page on my Facebook. Stay up to date and Follow Me On Pinterest!

casserole with potatoes topped with parsley

Garlic Parmesan Au Gratin Potatoes

Yield: 12-15
Prep Time: 15 minutes
Cook Time: 1 hour 30 minutes
Total Time: 1 hour 45 minutes

Garlic Parmesan Au Gratin Potatoes are a delicious potato side dish. A creamy and cheese au gratin that is flavored with tangy parmesan and garlic. A wonderful dinner side, holiday side dish, or potluck recipe.


  • 2 tablespoon olive oil
  • 10 red potatoes; peeled
  • 2 to 3 tablespoons minced garlic
  • 1 cup heavy cream
  • 1 cup milk
  • 1 teaspoon salt
  • 1 teaspoon pepper
  • 8 oz package shredded parmesan
  • parsley for topping


  1. Preheat oven to 350 degrees F. Drizzle olive oil into a 9x13 baking dish.
  2. Thinly slice potatoes and layer them into the baking dish. Add salt and pepper to the top of the potatoes.
  3. Then create another layer of potatoes just like the first and sprinkle some garlic throughout the potatoes this time.
  4. Now in a bowl whisk up your milk and heavy cream. Pour the mixture over the top of the potatoes.
  5. Top with grated parmesan cheese. Cover with foil then bakes for 1 hour and 15 minutes.
  6. Remove foil and bake another 15 minutes or until the potatoes are golden brown.
  7. Remove from oven to cool then top the cheesy au gratin potatoes with parsley if you would like.


You are welcome to use Yukon gold potatoes or even russets to peel and slice up for this recipe.

A mandoline is great at ensuring your potatoes are evenly cooked.

Go ahead and use a different type of cheese if you want. Mozzarella, pepper jack, etc.

Store any leftovers in the refrigerator for 3-4 days.

Nutrition Information:
Yield: 15 Serving Size: 1
Amount Per Serving: Calories: 321Total Fat: 12gSaturated Fat: 7gTrans Fat: 0gUnsaturated Fat: 5gCholesterol: 30mgSodium: 435mgCarbohydrates: 41gFiber: 4gSugar: 3gProtein: 11g

This information is automatically calculated by third-party software, including but not limited to the Create or Bake Me Some Sugar. For accurate nutrition, I suggest running the ingredients in your own system to get a more accurate reading. Nutritional information is approximate and automatically calculated, and should only be viewed as an indication.

Au gratin potatoes

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