An ultra cheesy potato gratin made with thinly sliced potatoes, heavy cream, butter and lots of cheese. Flavored with garlic, a hint of fresh thyme and crispy sage on top. It’s not only delicious, it’s also incredibly easy to make. The extra bonus? It’s the ultimate make ahead potato side dish. It’s luxurious and thoroughly indulgent.
It’s quite remarkable how so few ingredients can make something so irresistible. But actually, it’s pretty hard to go wrong when potatoes, cream and cheese are involved. This is the kind of dish where the potatoes become ultra soft under a golden cheesy carpet. The result is practically impossible to dislike.
Making potato gratin is really easy. We thinly slice the potatoes, toss with cream, spices and two cheese varieties. In order to let the edges become super crispy, we arrange them upright in a baking dish, instead of layering them flat as in a classic gratin. We add all of the excess cream/cheese mixture and bake, covered with aluminum foil, for about an hour. After this, we bake everything uncovered for 30 minutes more. And done!
Let me guide you through the recipe with this step-by-step VIDEO.
Be sure to take some extra time to cut the potatoes in thin wedges, a mandoline is really helpful but a sharp chef’s knife will also work great here. It might seem intimidating to thinly slice this amount of potatoes, but I bet after three potatoes, you’ll be slicing like a pro.
- use potatoes, like Russets, Yukon Gold, Charlotte, Idaho or Nicola
- cut the potatoes in thin wedges, a mandoline is really helpful but a sharp chef’s knife will work great here
- toss the sliced potato with your hands until every slice is coated with the cream-cheese mixture, make sure to separate any slices that are sticking together, to get them coated all over
- pack the potatoes tightly to keep them standing up. Longer, thinner potatoes will fill a dish more tightly than shorter, thicker potatoes. Make sure to have more potatoes on hand, so you can slice some more if needed
- you can use unpeeled or peeled potatoes
- any full fat cream works great here. For a lighter version, use light fat, but don’t try this with just milk
- instead of cheddar, you could use Gruyere, Gouda or Monterey Jack
- use cheese from a block, not pre-grated. By grating it yourself you ensure that the cheese fully melts and becomes as smooth and velvety as possible
- sweet potatoes will also work great here
- top with crispy bacon bits or toasted walnuts
You can prepare it without baking and refrigerate up to two days before. Or prepare it one day before, bake covered for 1 hour, allow to cool and refrigerate, then remove from the fridge at least 30 minutes before baking and let sit at room temperature. Bake 30 minutes uncovered just before you serve the gratin (step 5).
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Calories Per Serving: 428 kcal
Cheesy Potato Gratin
Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.
Calories Per Serving: 428 kcal
These sound amazing and I’d love to make for Christmas. How do you make ahead? Par bake? Always worry about doing sliced potato ahead.
Hi, you can prepare it without baking and refrigerate up to two days before. Or prepare it one day before, bake covered for 1 hour, refrigerate, then bake 30 minutes uncovered before you serve the gratin (step 5). Let me know if you have any more questions. Happy Holidays!!
Hey, I’d love to try this but with sweet potatoes. Do you think that would work?
Hi, I think sweet potatoes will be great here, but you’ll need to reduce the baking time with 20 minutes. Happy cooking!
This side dish gets compliments every time I make it! We omit the thyme and sage due to our taste preferences but this is delicious and easy to make. Pairs well as a side to lamb chops.
Fantastic! That makes me so happy!