Description

If you’re searching for a rich, cheesy, and truly satisfying side dish, you’re in the right place. This Gruyere Potatoes Au Gratin recipe combines the creamy texture of Yukon gold potatoes with the deliciously nutty flavor of Gruyere cheese, delivering a baked dish that’s golden and irresistibly bubbly on top. Perfect as a cozy addition to your family dinners or a show-stopping side for holiday feasts!

Ingredients

Scale

5–6 large Yukon gold potatoes, peeled and thinly sliced
3 tablespoons unsalted butter
3 tablespoons all-purpose flour
2 cups milk (whole or 2% for best creaminess)
1 teaspoon salt
½ teaspoon garlic powder
½ teaspoon onion powder
½ teaspoon dried oregano
½ teaspoon dried thyme
¼ teaspoon black pepper
2 cups Gruyere cheese, grated
½ cup Parmesan cheese, grated

Ingredient Tips and Substitutions

Milk Alternatives: For a lighter version, try using almond or oat milk.
Cheese Alternatives: Cheddar or Emmental can substitute Gruyere if desired.
Gluten-Free: Substitute flour with a gluten-free alternative for a gluten-free dish.

Instructions

Step 1: Preparation

Preheat your oven to 400°F (200°C) and grease a 9×13-inch baking pan.
Peel and Slice the potatoes thinly using a mandoline or a sharp knife for uniformity. Set aside.

Step 2: Prepare the Sauce

In a saucepan, melt the butter over medium heat.
Add flour and whisk continuously for 1 minute until combined.
Slowly pour in the milk, whisking constantly to ensure no lumps form.

Step 3: Season the Sauce

Add salt, garlic powder, onion powder, oregano, thyme, and black pepper to the mixture.
Bring to a simmer, stirring frequently until the sauce thickens, about 8–10 minutes.

Step 4: Incorporate the Cheese

Remove the sauce from heat and add 1½ cups of Gruyere and ¼ cup of Parmesan.
Stir until the cheese is fully melted and incorporated into the sauce.

Step 5: Layer the Potatoes

Layer half of the potato slices evenly in the baking dish.
Pour half of the cheese sauce over the potatoes, spreading it evenly.
Repeat with the remaining potatoes and cheese sauce.

Step 6: Top with Cheese and Bake

Sprinkle the remaining Gruyere and Parmesan on top.
Cover with foil and bake for 25 minutes.
Uncover and bake for an additional 20–25 minutes until the potatoes are tender and the cheese is golden brown.

Step 7: Rest and Serve

Remove from the oven and allow to sit for 10 minutes to let the sauce set.
Serve hot and enjoy!

Notes

Uniform Slices: Use a mandoline to ensure even cooking.
Cheese Quality: Opt for freshly grated Gruyere for the best melting texture.
Baking Time: If you notice the top browning too quickly, cover with foil midway.
Seasoning: Freshly cracked pepper adds a touch of spice that complements Gruyere’s nuttiness.