Dad’s Creamy Au Gratin Potatoes

WANT TO SAVE THIS RECIPE?

There’s nothing quite as comforting as a warm, bubbling dish of homemade au gratin potatoes. This recipe is a cherished family favorite, bringing together tender potatoes, a rich and creamy cheese sauce, and a golden, crispy top. Perfect for holidays, family gatherings, or a cozy Sunday dinner, these au gratin potatoes will quickly become a staple on your table.

Rich, Creamy, and Irresistible Recipe

Au gratin potatoes are all about layers of soft, thinly sliced potatoes smothered in a velvety cheese sauce and baked until golden brown. The combination of creamy and cheesy flavors with just the right amount of crispiness on top makes every bite pure comfort.

This dish is incredibly easy to prepare and can be customized with your favorite cheeses and seasonings. Whether served as a side dish for a roast dinner or as the star of a meal on its own, these au gratin potatoes never fail to impress.

Ingredients for Dad’s Creamy & Cheesy Au Gratin Potatoes

To make this rich and satisfying dish, you’ll need a handful of simple ingredients that come together to create layers of cheesy, creamy goodness.

• Potatoes – Use Russet or Yukon Gold potatoes for the best texture. Russets are starchy and create a soft, creamy bite, while Yukon Golds offer a buttery flavor.
• Cheese – A combination of sharp cheddar and Gruyère gives this dish a deep, rich taste with a perfectly melty consistency. You can also experiment with Parmesan or Monterey Jack for variety.
• Heavy Cream & Milk – These create the luxurious, velvety sauce that coats the potatoes, making each bite rich and satisfying.
• Butter – Adds extra creaminess and a touch of richness to the dish.
• Garlic – Freshly minced garlic infuses the sauce with a subtle depth of flavor.
• Flour – A bit of all-purpose flour helps thicken the cheese sauce, ensuring a creamy consistency that clings to the potatoes.
• Salt & Pepper – Essential for enhancing the natural flavors of the potatoes and cheese.
• Nutmeg (optional) – A pinch of nutmeg adds a hint of warmth and elevates the creamy sauce.
• Fresh Parsley (for garnish) – A sprinkle of fresh herbs brings color and brightness to the finished dish.

---

How to Make Dad’s Creamy & Cheesy Au Gratin Potatoes

Making this dish is easy and rewarding. With just a few steps, you’ll have a bubbling, golden masterpiece fresh from the oven.

Step 1: Prep the Ingredients

Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking dish with butter to prevent sticking.

Step 2: Slice the Potatoes

Wash and peel the potatoes, then slice them thinly (about 1/8-inch thick) using a sharp knife or a mandoline for even layers.

Step 3: Make the Cheese Sauce

In a medium saucepan, melt butter over medium heat. Add garlic and sauté until fragrant. Whisk in flour and cook for about 1 minute, stirring constantly. Gradually pour in the milk and heavy cream, whisking continuously to prevent lumps. Let the sauce simmer until slightly thickened.

Step 4: Add the Cheese

Remove the saucepan from heat and stir in cheddar and Gruyère cheese, mixing until smooth and melted. Season with salt, pepper, and a pinch of nutmeg (if using).

Step 5: Layer the Potatoes

Arrange half of the sliced potatoes in an even layer in the prepared baking dish. Pour half of the cheese sauce over them, spreading it evenly. Repeat with the remaining potatoes and sauce.

Step 6: Bake Until Golden

Cover the dish with aluminum foil and bake for 45 minutes. Then, remove the foil, sprinkle extra cheese on top, and bake uncovered for another 15-20 minutes until the top is golden brown and bubbly.

Step 7: Let It Rest & Garnish

Allow the potatoes to rest for about 10 minutes before serving. Garnish with fresh parsley and enjoy warm!

How Long to Bake Au Gratin Potatoes

Baking time is crucial to achieving the perfect texture—soft, creamy potatoes with a golden, bubbly top. Here’s a general guideline:

• Covered Baking Time – Bake at 375°F (190°C) for 45 minutes to allow the potatoes to soften while absorbing the creamy sauce.
• Uncovered Baking Time – Remove the foil and bake for an additional 15-20 minutes until the top is golden brown and bubbly.
• Total Baking Time – About 60-65 minutes for perfectly tender and creamy au gratin potatoes.

To test for doneness, insert a knife or fork into the center—if it slides through easily, they’re ready!

---

How to Store Leftovers

These au gratin potatoes taste just as good the next day! Here’s how to store and reheat them properly:

• Refrigerator – Store leftovers in an airtight container for up to 3 days.
• Freezer – To freeze, let the dish cool completely, then wrap tightly in plastic wrap and aluminum foil. Store for up to 1 month. Thaw in the refrigerator overnight before reheating.
• Reheating – Warm in a 350°F (175°C) oven for 15-20 minutes, or until heated through. You can also microwave individual portions for convenience.

---

Tips for Perfect Au Gratin Potatoes

Want to take this dish to the next level? Here are some helpful tips to ensure the best results:

• Use Evenly Sliced Potatoes – Thin, uniform slices ensure even cooking. A mandoline slicer makes this step quick and easy.
• Choose the Right Cheese – A mix of sharp cheddar and Gruyère creates the best flavor and melt. Avoid pre-shredded cheese, as it contains anti-caking agents that prevent smooth melting.
• Layer for Maximum Flavor – Adding cheese sauce in layers between the potatoes ensures every bite is creamy and flavorful.
• Let It Rest – Allowing the dish to sit for 10 minutes after baking helps the sauce thicken and the flavors meld together.
• Customize with Add-Ins – Try adding crispy bacon, caramelized onions, or fresh herbs for extra flavor.

These creamy and cheesy au gratin potatoes are the ultimate comfort food—rich, indulgent, and perfect for any occasion. Enjoy!

Print