Gratin de pommes de terre

I grew up on this stuff. This is my mom’s specialty and after a long visit, she got us hooked on the stuff. We even shook things up and added sweet potatoes to the mix, which make it even more delicious!

So here it is, an easy 6 ingredient recipe for the best gratin de pommes de terre you’ll ever make!

Here’s what you’ll need:

  • 2 medium sweet potatoes
  • 2 small white potatoes (I went with red potatoes, but yukon gold work as well)
  • 1/2 cup of milk
  • 1 cup of heavy cream
  • salt to taste
  • 1 1/2 cups shredded cheese (any blend)

My mom’s original recipe called for only white potatoes and no milk, but I’ve substituted some of the heavy cream for milk as to make it a little less fattening 😉



Start by cleaning, peeling and slicing your potatoes. Now, sweet potatoes are my least favorite potato to cut. They’re hard and oddly shaped so don’t fret if you can’t get perfect round cuts from them, we’re gonna eat them, not frame them!


I always end up with more sweet potato than white potato, I like it that way, but if you want an even amount of both I suggest using 1 sweet potato and 3 white potatoes.

Preheat your oven to 350 degrees and now, let’s start assembling:


One layer of potatoes, sprinkle some shredded cheese and a little bit of salt and repeat.



Excuse my big chunks of cheese. I attempted to shred my own cheese since I ran out of shredded cheese 🙂 It’ll melt and all come together the same either way!

Now let’s add the heavy cream/milk mixture. I mix it together in a measuring cup and then pour it all over the potatoes.

You want it to just barely cover everything. The more you put the creamier the potatoes, but you don’t want them to have to much liquid either. I measure by looking at it. This is what you want:


It’s now ready to be popped into the oven!

45 minutes to an hour later, it’s ready!



Serve and enjoy!

Bon Appétit!

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