Potatoes Au Gratin

These cheesy Au Gratin Potatoes are the perfect side dish for any meal! With a homemade cream sauce and layers of parmesan and cheddar cheese, this Potatoes Au Gratin recipe is SO rich and creamy! Not only is it delicious – it’s beyond easy to make!

Homemade Au Gratin Potatoes

Cheesy Au Gratin Potatoes

I have to confess, I’m not usually one for side dishes. I like to eat them, of course, but it’s not normally worth it to me to take the extra time and effort to make a side dish with dinner. We generally just eat some sautéed vegetables and fresh fruit as sides with dinner, and save the side dishes for special occasions. When the holidays roll around, though, I am all about the side dishes! I love loading my plate with all of the delicious sides, from mashed potatoes to stuffing to sweet potato casserole. This delicious Potatoes Au Gratin recipe is perfect for your holiday table (or for any other time you need a delicious side!) It’s easy to make, and incredibly cheesy and delicious!

The phrase “Au Gratin” makes these potatoes sound like they’re super fancy gourmet potatoes doesn’t it? Although it sounds fancy (and tastes like a million bucks in my opinion), this recipe is actually really simple! “Au Gratin” is French, and it literally means “by grating”. So you’ll see Au Gratin recipes topped with either bread crumbs, shredded cheese, or both, and then browned. Believe me, this recipe is every cheese lovers dream! The potatoes are smothered in a rich homemade cheese sauce, and topped with even more shredded cheese. Sooo much creamy cheesy goodness in each bite!!


Au Gratin Potatoes Recipe

Potatoes Au Gratin

Au Gratin Potatoes

Homemade Au Gratin Potatoes

How to make Au Gratin Potatoes:

Potatoes Au Gratin only take a little while to prep, between the potato slicing, sauce making, and layering. But they do have to bake in the oven for an hour and a half (which feels like an eternity when you can smell the cheesy deliciousness)! So plan ahead for the long bake time!

  1. You’ll start by slicing your potatoes thinly, then spreading them in a baking dish. I like to do the whole process in layers so I can maximize the amount of cheesy goodness.
  2. You’ll then pour a creamy and rich homemade cheese sauce over each layer of potatoes, and sprinkle with parmesan and cheddar cheese.
  3. Repeat the layers twice more, starting with potatoes, and finishing with shredded cheese.
  4. The potatoes bake for an hour covered, and an additional 20-30 minutes uncovered, until golden brown on top.

It’s a good idea to let them sit before serving so the sauce can thicken up a little bit, so also account for 10-15 minutes of cool time after they come out of the oven.

Potatoes Au Gratin

Easy Potatoes Au Gratin

These au gratin potatoes are unbelievably delicious! They’re a little too rich to eat on a daily basis, but they’re perfect for a holiday or special dinner. And they’re so tasty that you’ll be craving them constantly. 🙂

For even more potato side dishes, check out:

Au Gratin Potatoes Recipe

These cheesy Au Gratin Potatoes are the perfect side dish for any meal! With a homemade cream sauce and layers of parmesan and cheddar cheese, this Potatoes Au Gratin recipe is SO rich and creamy!

Course Side Dish
Cuisine American
Prep Time 10 minutes
Cook Time 1 hour 30 minutes
Cool 15 minutes
Total Time 1 hour 55 minutes
Servings 6
Calories 392 kcal
Author The Baker Upstairs on lilluna.com


  • 6 medium red potatoes sliced thinly
  • 4 tbsp butter
  • 4 tbsp flour
  • 2 cups milk
  • 1/2 cup cream
  • 2 tsp salt
  • 1/4 tsp pepper
  • 2 cups shredded cheddar cheese divided
  • 1/2 cup freshly grated parmesan cheese


  1. Preheat the oven to 350. Spray a 9 x 9 baking dish with cooking spray and set aside.

  2. In a medium saucepan, melt the butter. Whisk in the flour, and cook 3-4 minutes, until golden brown. Slowly add the milk and cream, whisking constantly to prevent lumps. Cook an additional 5-6 minutes, or until thickened. Remove from heat and stir in the salt and pepper and one cup of the cheddar cheese.
  3. Layer one third of the potato slices as evenly as possible in the prepared baking dish. Pour one third of the sauce over the potatoes and spread to cover. Sprinkle ⅓ of the parmesan cheese and ⅓ of the remaining cheddar cheese over the top. Repeat the layers twice more.
  4. Cover with foil and bake for one hour. Remove foil and bake for an additional 20-30 minutes, or until golden brown and bubbling on top. Let cool 15-20 minutes before serving.

I love potato dishes & these look amazing! Thank you Alicia for sharing! For more delicious recipes from Alicia, check out, The Baker Upstairs.


Easy Potatoes Au Gratin Recipe

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Alicia Skousen

Hi! I’m Alicia and I blog at The Baker Upstairs. I am in love with all things food! I love to bake bread, cupcakes, cookies… you name it! When I’m not baking, I am running after my two adorable little girls, working as an RN, knitting, reading, and trying to squeeze in time with my husband every day.

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  1. I don’t think I’ve ever made au gratin potatoes before, but now I definitely want to try! These look so delicious! I just have to be careful using my mandoline slicer, because I have sliced both a thumb and a finger before! But these potatoes just might be worth it 🙂

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