If you’re in search of a side dish that perfectly captures the essence of comfort food, our Gruyere Potatoes Au Gratin recipe is just what you need! This delightful dish combines the creamy goodness of Yukon gold potatoes with the nutty, rich flavor of Gruyere cheese, making it an irresistible choice for any gathering. Baked to perfection, the golden-brown top is not only visually appealing, but it’s also bursting with flavor, waiting to please your family and friends.
Serving this creamy and cheesy delight at your table will surely enhance any dining experience, from intimate family dinners to festive holiday feasts. With its uncomplicated preparation, you can focus on enjoying the time spent with your loved ones while knowing that this dish will be a show-stopping star, stealing the spotlight on your dinner table!
Why You’ll Love This Gruyere Potatoes Au Gratin
- Irresistibly Creamy: The combination of Yukon gold potatoes and decadent Gruyere cheese creates a rich texture that melts in your mouth.
- Easy to Prepare: With straightforward steps and a few ingredients, you can whip up this classic dish effortlessly.
- Perfect for Any Occasion: Whether it’s a holiday dinner or a casual weeknight meal, this dish complements any main course beautifully.
- Great for Leftovers: Enjoy the savory goodness the next day as the flavors deepen overnight!
Preparation Phase & Tools to Use
Preparation is key to cooking Gruyere Potatoes Au Gratin successfully. Start by preheating your oven to 400°F (200°C) and greasing a 9×13-inch baking dish with a bit of butter or cooking spray. This not only prevents sticking but also adds a little extra flavor.
Next, using a mandoline slicer or a sharp knife, thinly slice your Yukon gold potatoes, ensuring they are uniform in thickness for even cooking. A mandoline can help achieve this efficiently, but take care to protect your fingers!
Once your potatoes are sliced, gather all your ingredients and pre-measure them. You’ll need a saucepan for your cheese sauce and an oven-safe baking dish. Having everything at hand will streamline your cooking process, making this already simple recipe even easier.

Ingredients
- 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
Instructions
Step 1: Preheat and Prepare the Baking Dish
Start by preheating your oven to 400°F (200°C). While it’s heating, take a 9×13-inch baking dish and grease it lightly using unsalted butter. This step ensures that your Gruyere Potatoes Au Gratin will come out of the dish easily and retain its perfect shape.
Step 2: Slice the Potatoes
Using a sharp knife or mandoline, peel and thinly slice the Yukon gold potatoes. Aiming for uniform slices not only helps with even cooking but also presents a lovely aesthetic when serving. Once done, set the potato slices aside to start creating your creamy cheese sauce.
Step 3: Create the Cheese Sauce
In a medium saucepan, melt 3 tablespoons of unsalted butter over medium heat. Once it’s melted, add in 3 tablespoons of all-purpose flour, whisking continuously for about a minute until you achieve a smooth, golden paste known as a roux. It’s crucial to whisk well at this stage to avoid lumps.
Step 4: Pour in the Milk
Gradually add in 2 cups of milk while continuing to whisk. This helps the mixture to become creamy without any lumps forming. Keep stirring until the mixture reaches a gentle simmer and thickens, which should take about 8–10 minutes. The result should be a velvety sauce.
Step 5: Season the Sauce
Once thickened, season your cheese sauce by adding 1 teaspoon salt, ½ teaspoon garlic powder, ½ teaspoon onion powder, ½ teaspoon dried oregano, ½ teaspoon dried thyme, and ¼ teaspoon black pepper. Stir well to incorporate the flavors. This blend of seasonings will elevate the taste of your dish.
Step 6: Incorporate the Cheese
Remove the saucepan from heat and add 1½ cups of grated Gruyere cheese and ¼ cup of grated Parmesan cheese. Stir until the cheese is melted and thoroughly mixed in. This mixture will be the creamy base that bathes your potatoes in cheesy goodness.
Step 7: Layer the Potatoes
Begin constructing your dish by layering half of the sliced potatoes evenly in the bottom of the prepared baking dish. Pour half of the creamy cheese sauce over the potatoes and spread it across evenly. Follow this by layering the remaining potato slices and pouring the rest of the cheese sauce on top. Make sure every slice is well-covered for maximum flavor!
Step 8: Top with Cheese and Bake
Finally, sprinkle the remaining Gruyere and Parmesan cheese on top layer of potatoes for that beautiful golden crust. Cover the dish tightly with aluminum foil and bake in the preheated oven for 25 minutes. After this initial cooking time, remove the foil and bake for an additional 20–25 minutes, or until the potatoes are tender and the cheese turns a lovely golden brown.
Step 9: Allow to Rest and Serve
After removing from the oven, let the dish sit for 10 minutes. This resting time allows the sauce to set slightly, making it easier to serve. Dig in while it’s hot, and enjoy the cheesy, comforting blend of flavors!

Variations
- Protein: For a heartier dish, add cooked bacon or ham between the layers of potatoes for an extra burst of flavor.
- Vegetables: Consider adding sautéed spinach or thinly sliced mushrooms to the mix for a nutritious twist.
- Spices: Experiment with spices such as cayenne pepper for some heat or nutmeg for a warm, aromatic flavor that pairs well with cheese.
Cooking Notes
- Ensure potatoes are sliced evenly to allow for uniform cooking throughout the dish.
- For smoother cheese sauce, whisk consistently after adding the milk to prevent lumps.
- If necessary, cover the dish with foil if it begins to brown too quickly but ensure the foil doesn’t touch the cheese.
- Allowing the dish to rest after baking is key for easier serving, as it allows the sauce to thicken slightly.
Serving Suggestions
- Pair your Gruyere Potatoes Au Gratin with roasted chicken or beef for a complete meal.
- This dish also complements a fresh garden salad or steamed vegetables, offering balance to the richness of the potatoes.
Tips
- For a gluten-free version, swap the all-purpose flour for a gluten-free flour alternative.
- If you prefer a lighter version, you can use almond or oat milk instead of regular milk.
- Save time by prepping the cheese sauce in advance and assembling the dish when ready to bake.
- Feel free to experiment with different cheese combinations for a unique twist on the classic flavors.
Prep Time, Cook Time, Total Time
- Prep Time: 30 minutes
- Cook Time: 50 minutes
- Total Time: 1 hour 20 minutes
Nutritional Information
- Calories: 450 per serving
- Protein: 15g
- Sodium: 680mg
FAQs
Can I prepare Gruyere Potatoes Au Gratin in advance?
Yes! You can prepare the dish up to the baking stage, cover it tightly, and refrigerate it for up to 24 hours. When you’re ready to bake, just add an extra 10-15 minutes to the recommended baking time.
What can I use if Gruyere cheese is unavailable?
If you can’t find Gruyere cheese, Emmental or sharp cheddar are both excellent substitutes that will still provide a wonderful flavor.
Can I freeze leftovers?
Yes, you can freeze cooked Gruyere Potatoes Au Gratin. Cool it completely, wrap in an airtight container, and store it in the freezer for up to 3 months. Reheat in the oven before serving.
How do I make the cheese sauce extra creamy?
Using whole milk instead of low-fat milk enhances the creaminess of the cheese sauce. Additionally, mixing in a splash of heavy cream can elevate the richness dramatically!
Conclusion
In conclusion, this Gruyere Potatoes Au Gratin recipe is a timeless dish that offers a delightful blend of creaminess and rich flavors that will impress guests and family alike. We encourage you to make it for your next gathering, and let us know how it turned out! Don’t forget to share your variations and tips in the comments below. Happy cooking!
Print
Gruyere Potatoes Au Gratin
- Total Time: 1 hour 20 minutes
- Yield: 6 servings 1x
Description
This creamy and cheesy dish is a must-try for any gathering!
Ingredients
- 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
Instructions
- Preheat your oven to 400°F (200°C) and grease a 9×13-inch baking dish lightly with unsalted butter.
- Slice the Yukon gold potatoes thinly and set them aside.
- Melt 3 tablespoons of unsalted butter in a medium saucepan over medium heat, then whisk in 3 tablespoons of all-purpose flour to create a roux.
- Gradually whisk in 2 cups of milk and cook until thickened, about 8–10 minutes.
- Season with salt, garlic powder, onion powder, oregano, thyme, and black pepper.
- Add Gruyere and Parmesan cheese to the sauce, stirring until melted.
- Layer half of the sliced potatoes in the baking dish and pour half of the cheese sauce over them; repeat with the remaining potatoes and sauce.
- Sprinkle the top with remaining cheese, cover with aluminum foil, and bake for 25 minutes. Remove the foil and continue baking for another 20–25 minutes until golden brown.
- Let it rest for 10 minutes before serving.
Notes
For a gluten-free version, use gluten-free flour. If you prefer a lighter version, substitute with almond or oat milk.
- Prep Time: 30 minutes
- Cook Time: 50 minutes
- Category: Side Dish
Nutrition
- Calories: 450 kcal
- Sodium: 680 mg
- Protein: 15 g