Potatoes au Gratin Recipe

Potatoes au Gratin Recipe

Cheesy Potatoes au Gratin are always a hit. You can’t beat the thick, creamy sauce and tender potatoes! Pairs well with so many holiday mains and can be prepped ahead.

Ingredients

  • russet potatoes)

    (about 3 pounds/1.35kg

    4
  • white onion)

    (275g

    1 medium
  • salt

    plus more for seasoning

    ¾ tsp
  • pepper

    plus more for seasoning

    ½ tsp
  • unsalted butter)

    (56g

    ¼ c
  • all-purpose flour
    3 tbsp
  • warm milk)

    (480ml

    2 c
  • shredded gruyere)

    (60g

    ½ c
  • shredded cheddar cheese)

    (120g

    1 c

Directions

  1. 1

    Preheat the oven to 350°F.

  2. 2

    Peel the potatoes, then thinly slice them about ⅛-inch thick. Peel, halve, and thinly slice the onion. Shingle the potato and onion slices in layers in a 2-quart to 3-quart casserole dish, seasoning the layers lightly with salt and pepper as you go. ( I used about ½ teaspoon of each when assembling the gratin.)

  3. 3

    In a medium pot, melt the butter over medium heat. Whisk in the flour. Cook whisking constantly, for 2 minutes. Drizzle in the warm milk while whisking. Continue whisking until the mixture starts to bubble and thicken slightly, 2 to 3 minutes.

  4. 4

    Remove from heat and stir in the shredded cheeses, salt, and pepper until the cheese is melted. Pour the cheese sauce over the potatoes. Cover the pan tightly with foil.

  5. 5

    Bake for 1 hour or until a fork can be inserted into the potatoes with slight resistance. (They should feel a little bit firm but not hard. If so, continue baking, checking every 10 to 15 minutes.)

  6. 6

    Carefully remove the foil and continue baking for an additional 20 to 30 minutes, or until the top is golden brown and the potatoes are tender. (You should be able to easily insert a fork into the center.) Let the gratin cool for 10 to 15 minutes, so the sauce thickens up slightly, before serving.

Potatoes au Gratin Recipe

Potatoes au Gratin Recipe

279 cal

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About this Recipe

Craving a side dish that truly shines? This Potatoes au Gratin recipe promises to be an unforgettable addition to any meal, delivering rich, cheesy goodness and incredibly tender potatoes. It’s the kind of comforting, luxurious dish that elevates ordinary dinners and effortlessly becomes the star of holiday gatherings.

The undeniable allure of this Potatoes au Gratin lies in its deeply flavorful, thick, and creamy sauce. It perfectly coats every delicate slice of russet potato, creating a melt-in-your-mouth experience. The thoughtful blend of sharp cheddar and nutty Gruyere cheese creates a complex flavor profile that's both supremely comforting and elegantly sophisticated, making it a guaranteed crowd-pleaser.

Prepare for beautifully layered russet potatoes, baked until fork-tender and completely enveloped in a luscious, savory cheese sauce. Each bite offers a harmonious balance of creamy texture and robust cheesy flavor, an indulgent experience that warms from the inside out. This hearty side dish, clocking in at 279 calories per serving, is an ideal choice for adding a touch of classic elegance and profound satisfaction to any family dinner or special occasion.

While this recipe is a classic for a reason, you can easily personalize it. Consider adjusting the proportions of Gruyere and cheddar to lean more towards a sharper or milder cheese profile, depending on your preference. For a subtle shift in aromatics, a yellow onion could be used instead of the specified white onion for a slightly sweeter base.

This rich and cheesy gratin serves as the perfect accompaniment to holiday roasts, celebratory mains, or any comforting entree, ensuring a memorable dining experience.

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