Description
This classic Gruyere Potatoes Au Gratin recipe combines thinly sliced Yukon gold potatoes with a creamy, cheesy sauce, baked to perfection with a golden-brown crust. It’s a comforting side dish that pairs wonderfully with everything from roasted meats to seasonal vegetables. Whether you’re looking for a festive side for the holidays or just a cozy dish to brighten a regular dinner, this gratin promises to deliver satisfaction in every bite.
Ingredients
5–6 large Yukon gold potatoes, peeled and thinly sliced
3 tablespoons unsalted butter
3 tablespoons all-purpose flour
2 cups milk
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
Instructions
Preheat the oven to 400 F, grease a 9×13-inch baking pan and set aside.
Peel the potatoes and thinly slice them using a mandoline. Then set aside.
In a saucepan, melt the butter over medium heat. Add the flour and whisk for one minute until well combined. Then add the milk and whisk until there are no clumps.
Add the salt, garlic powder, onion powder, oregano, thyme, and black pepper. Bring the mixture to a simmer and continue cooking, constantly stirring, for about 10 minutes or until the sauce thickens and coats a spoon.
Remove from the heat and add 1 ½ cups grated Gruyere cheese and ¼ cup grated Parmesan cheese. Fold it in until the cheese is melted and well combined.
Evenly layer half of the sliced potatoes in the prepared pan and pour over half of the cheesy sauce. Then layer the rest of the potatoes over and pour the rest of the cheesy sauce on top, ensuring it’s evenly spread and covers the potatoes.
Sprinkle over the rest of the cheese (½ cup grated Gruyere and ¼ cup grated Parmesan).
Cover with foil and bake at 400 F for 25 minutes. Then uncover and continue baking for another 20-25 minutes or until the potatoes are tender and the cheese gets golden/brown color.
Remove from the oven and let sit on the counter for 10 minutes to allow the sauce to set and bind everything together.
Serve and enjoy!