If you’ve ever dreamed of a dish that feels like a warm, comforting hug on a plate, this Cheesy Potatoes Au Gratin Recipe is exactly what you need. Imagine tender, thinly sliced Yukon Gold or Russet potatoes layered with velvety, garlicky cream sauce and two types of melty, luscious cheese that create a golden crust so irresistible, it’ll have everyone asking for seconds. This recipe blends simple ingredients with rich flavors to make a classic side dish that’s perfect for every occasion, from weeknight dinners to holiday feasts.

Ingredients You’ll Need
Gathering these straightforward yet essential ingredients is the first step to creating a delectable Cheesy Potatoes Au Gratin Recipe. Each item plays a crucial role in delivering the perfect balance of creamy texture, cheesy richness, and subtle seasoning that makes this dish so unforgettable.
- 3 pounds Yukon Gold or Russet potatoes: These varieties hold their shape well and develop a creamy texture after baking.
- 2 cups heavy cream: Provides a rich, luxurious base that coats the potatoes beautifully.
- 4 tablespoons butter: Adds depth and helps to sauté the garlic, enhancing aroma and flavor.
- 3 cloves garlic, minced: Infuses the cream sauce with a gentle pungency that complements the cheese perfectly.
- 2 cups shredded cheddar cheese, divided: Brings a sharp, tangy flavor and helps create that perfect golden crust.
- 1 cup shredded Gruyère cheese, divided: Offers nuttiness and melts smoothly for the creamy sauce.
- 1 1/2 teaspoons salt: Balances flavors and draws out the natural sweetness of the potatoes.
- 1/2 teaspoon black pepper: Adds subtle heat and complexity without overpowering the dish.
- 1 teaspoon fresh thyme leaves (optional): Introduces a fragrant herbal note for an extra touch of sophistication.
How to Make Cheesy Potatoes Au Gratin Recipe
Step 1: Preheat Oven and Prepare Dish
Start by preheating your oven to 375°F and lightly grease a 9×13-inch baking dish. This ensures your potatoes won’t stick and your finished dish will slide right out—a small but satisfying detail!
Step 2: Slice the Potatoes Evenly
Peel the potatoes and slice them thinly and uniformly. Consistent thickness means they’ll cook evenly, which is key for reaching that perfect tender yet slightly firm texture we all love in au gratin potatoes.
Step 3: Make the Cream Sauce
Melt the butter in a saucepan over medium heat. Toss in the minced garlic and sauté it just until fragrant, about 30 seconds. This gentle step unlocks the garlic’s flavor without turning it bitter, setting a tasty base for the sauce.
Step 4: Add Cream and Melt Cheeses
Pour in the heavy cream and warm it gently—remember, no boiling! Slowly stir in 1 1/2 cups of shredded cheddar and 1/2 cup of Gruyère until melted and smooth. This creamy, cheesy sauce is everything you’re hoping for: rich, silky, and packed with flavor.
Step 5: Season the Sauce
Mix in salt, black pepper, and if you’re feeling a little fancy, fresh thyme leaves. These seasonings brighten the sauce and tie all the flavors together with elegance and warmth.
Step 6: Assemble the Layers
Place half of the potato slices evenly in the prepared baking dish. Pour half of the cheese sauce over the potatoes, spreading it gently. Layer the remaining potatoes on top, then pour over the remaining cheese sauce, making sure every slice gets soaked in that luscious, cheesy goodness.
Step 7: Add the Final Cheese Topping
Sprinkle the leftover 1/2 cup of cheddar and 1/2 cup of Gruyère evenly across the dish’s surface. This final cheesy blanket will melt into a bubbly, golden crust that’s pure comfort heaven when baked.
Step 8: Bake Covered, Then Uncovered
Cover the dish with foil and bake for 45 minutes. This gentle baking allows the potatoes to soften without drying out. Then remove the foil and bake for another 25 to 30 minutes until the top is beautifully golden and the potatoes are fork-tender.
Step 9: Let It Rest
Allow your Cheesy Potatoes Au Gratin Recipe to rest for 10 to 15 minutes before serving. This step helps the sauce thicken and settle, making every slice neat, creamy, and utterly delicious.
How to Serve Cheesy Potatoes Au Gratin Recipe

Garnishes
To elevate your dish visually and flavor-wise, sprinkle a few fresh thyme leaves or chopped fresh parsley on top right before serving. These fresh herbs add a lovely color contrast and a subtle herbal brightness that balances the richness.
Side Dishes
This cheesy masterpiece pairs beautifully with roasted or grilled meats like beef, chicken, or pork, and even alongside a crisp green salad for a well-rounded meal. Its creamy texture contrasts wonderfully with something lighter or smoky.
Creative Ways to Present
For entertaining, serve the potatoes au gratin in individual ramekins for personal portions that look charming and allow everyone to enjoy their own cheesy delight. You can also spoon it atop a bed of sautéed greens for an elegant plated dish.
Make Ahead and Storage
Storing Leftovers
Leftover Cheesy Potatoes Au Gratin Recipe keeps beautifully covered in the refrigerator for up to 3 days. Just make sure it’s cooled completely before sealing to maintain the best texture and flavor.
Freezing
This dish can be frozen, but since potatoes change texture a bit after freezing, it’s best to freeze it before baking. Assemble it fully, cover tightly, and freeze for up to 2 months. When ready, bake it straight from frozen, adding extra time as needed.
Reheating
Reheat leftovers covered with foil in a 350°F oven until warmed through, usually about 20–30 minutes. This keeps the dish moist and prevents the top from burning or drying out. A quick zap in the microwave works too if you’re in a hurry!
FAQs
What type of potatoes work best?
Yukon Gold and Russet potatoes are ideal because they slice thinly and bake to a creamy texture without falling apart, making for a perfect au gratin.
Can I use other cheeses?
Absolutely! While cheddar and Gruyère provide classic flavors, you can experiment with Fontina, Parmesan, or even mozzarella for different twists on creaminess and flavor profiles.
Is it possible to make this dish dairy-free?
Traditional au gratin relies heavily on dairy, but you can substitute with plant-based creams and vegan cheeses. Keep in mind the texture and flavor will differ somewhat from the classic.
Why do I need to rest the dish before serving?
Resting lets the sauce thicken slightly and helps the layers set, so your slices hold together nicely when served instead of falling apart or being too runny.
How do I prevent the cheese from burning during baking?
Covering the dish with foil for most of the bake time protects the cheese from drying out or burning. Removing the foil only at the end allows the top to brown beautifully without overcooking.
Final Thoughts
There’s just something incredibly satisfying about serving up a warm, bubbling pan of Cheesy Potatoes Au Gratin Recipe. Whether it’s cozy family dinners or special celebrations, this dish brings comforting flavor and cheesy magic that always wins hearts. I hope you give it a whirl and make it a beloved staple in your kitchen too!
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Cheesy Potatoes Au Gratin Recipe
- Prep Time: 20 minutes
- Cook Time: 1 hour 15 minutes
- Total Time: 1 hour 35 minutes
- Yield: 8 servings
- Category: Side Dish
- Method: Baking
- Cuisine: French
Description
This Cheesy Potatoes Au Gratin recipe is a rich and creamy baked dish featuring thinly sliced Yukon Gold or Russet potatoes layered with a decadent blend of cheddar and Gruyère cheeses, garlic-infused cream sauce, and a hint of fresh thyme. Perfectly golden and tender, this comforting side dish is ideal for holiday dinners or a cozy family meal.
Ingredients
Potatoes
- 3 pounds Yukon Gold or Russet potatoes, peeled and thinly sliced
Cheese Sauce
- 2 cups heavy cream
- 4 tablespoons butter
- 3 cloves garlic, minced
- 2 cups shredded cheddar cheese, divided
- 1 cup shredded Gruyère cheese, divided
- 1 1/2 teaspoons salt
- 1/2 teaspoon black pepper
- 1 teaspoon fresh thyme leaves (optional)
Instructions
- Preheat Oven and Prepare Dish: Preheat your oven to 375°F (190°C) and lightly grease a 9×13-inch baking dish to prevent sticking during baking.
- Slice Potatoes: Peel and thinly slice the potatoes evenly to ensure consistent cooking and tender results.
- Melt Butter: In a saucepan over medium heat, melt 4 tablespoons of butter steadily to create a base for the sauce.
- Sauté Garlic: Add the minced garlic to the melted butter and sauté for about 30 seconds until fragrant, making sure not to brown it.
- Add Cream: Pour in 2 cups of heavy cream and warm it gently, taking care not to let it boil, to meld the flavors smoothly.
- Melt Cheeses: Stir in 1 1/2 cups of shredded cheddar cheese and 1/2 cup shredded Gruyère cheese until the mixture becomes melted and smooth.
- Season Sauce: Add 1 1/2 teaspoons salt, 1/2 teaspoon black pepper, and fresh thyme leaves if using, stirring to combine all flavors well.
- Layer Potatoes and Sauce – First Layer: Arrange half of the sliced potatoes evenly in the prepared baking dish.
- Add Sauce Over First Layer: Pour half of the cheese sauce evenly over the first layer of potatoes.
- Layer Potatoes – Second Layer: Place the remaining potatoes on top of the first sauce layer, spreading evenly.
- Add Remaining Sauce: Pour the remaining cheese sauce evenly over the top layer of potatoes.
- Add Cheese Topping: Sprinkle the remaining 1/2 cup cheddar cheese and 1/2 cup Gruyère cheese evenly over the entire dish for a golden crust.
- First Bake with Foil: Cover the dish with foil to trap moisture and bake for 45 minutes, allowing the potatoes to soften.
- Remove Foil and Continue Baking: Remove the foil and bake for an additional 25 to 30 minutes until the top is golden brown and the potatoes are fork-tender.
- Rest Before Serving: Let the dish rest for 10 to 15 minutes after baking to let the sauce thicken and set for easier serving.
Notes
- For best results, slice potatoes uniformly to ensure even cooking.
- Using both cheddar and Gruyère cheese provides depth of flavor and a creamy texture.
- Fresh thyme is optional but adds a nice herbal note to the dish.
- Letting the dish rest is important to avoid too runny sauce when serving.
- This dish can be prepared a day ahead; cover and refrigerate before baking.

