Potatoes au Gratin
Updated February 2, 2025
- Total Time
- 50 minutes
- Rating
- Comments
- Read comments
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Ingredients
3 to 4 pounds potatoes, peeled and cut into ¼-inch slices
Kosher salt and black pepper
2 tablespoons unsalted butter
2 to 3 cups half-and-half or heavy cream
¼ cup grated Parmesan or Gruyère
Pinch of nutmeg (optional)
Preparation
- Step 1
Heat oven to 400 degrees. Seasoning each layer with salt and pepper as you go, layer the potatoes in a 10- or 12-inch ovenproof skillet.
- Step 2
Dot the top with 2 tablespoons butter. Pour in half-and-half. (It should come about ¾ of the way to the top.)
- Step 3
Bring to a boil over medium-high heat. Reduce to low and cook for 10 minutes, uncovered, until the half-and-half has reduced by about half.
- Step 4
Transfer to the oven and bake until the top is golden brown, about 10 minutes. Reduce heat to 300 degrees and cook until the potatoes are fork tender and the top is nicely browned, about 8 minutes more. Top with grated cheese and return to the oven until the cheese is melty and golden brown, about 3 to 5 minutes. Sprinkle with a pinch of nutmeg, if using, and serve.
Private Notes
Comments
Hi All! We've updated the recipe to include ingredient amounts and to clarify the instructions. I hope it helps!
I layer leeks and onions between the potato layers, use heavy cream and go light on the cheese but heavy on the garlic. It's delicious. I'm making this for Thanksgiving Day dinner.
So do you cook the entire pan of potatoes and cream, etc. on the stovetop and then move to the oven?
I didn’t read anyone’s suggestions and I followed the recipe just as it is, with a few exceptions. I went with heavy cream instead of half-and-half and used 3 cups. I added some extra garlic I had minced for the chicken I made for the main dish. Lastly, I used a lot more cheese than quarter cup. I shredded two 5.3-ounce blocks of Gruyère and half a block of Parmesan in the food processor. Because there was a lot of cheese on top, I left it in the oven a little longer than what it called for and then broiled for a 3 minutes or so at the end to brown the cheese slightly. I’ve tried a number of recipes for potatoes au gratin but this one was a real keeper. The family loved it.
Great recipe!! Used mandoline for thin potatoes..cooked onions in pan first..came out golden and delicious. So easy!
Wise to put pan on foil layered sheet before putting in oven, bound to be cream overflow, even at 3/4 of the way up and reduced by half on the stove top.

