There’s something comforting about a dish that reminds you of home, and my dad’s Creamy Cheesy Au Gratin Potatoes are just that. Layered with tender potatoes, rich cream, and gooey melted cheese, this recipe is a family favorite that we turn to for every occasion. Whether it’s a holiday feast or a cozy weeknight dinner, these potatoes never fail to steal the spotlight.

Irresistibly Creamy and Cheesy
These au gratin potatoes are the ultimate comfort food. Thinly sliced potatoes are baked in a luxurious cream sauce and topped with melted cheese that forms a golden, bubbly crust. The result? A dish that’s
rich, savory, and utterly satisfying. This recipe is versatile enough to complement a holiday ham or roast but comforting enough to enjoy all on its own.
You’ll love how simple it is to prepare while delivering such a big impact. With just a handful of pantry staples and a bit of layering magic, you can create this creamy, cheesy masterpiece that’s sure to become a favorite in your home. Let’s dive into the recipe and learn how to make this classic dish step-by-step!
Ingredients for Dad’s Creamy Cheesy Au Gratin Potatoes
To create this mouthwatering dish, you’ll need a few simple yet flavorful ingredients that come together beautifully in the oven:
- Potatoes – Choose starchy potatoes like Russets or Yukon Golds. Their texture ensures the perfect balance of creaminess and structure after baking.
- Heavy Cream – The base of the sauce, providing richness and a silky texture.
- Cheddar Cheese – A sharp cheddar melts beautifully and adds a tangy, savory flavor. Feel free to mix with Gruyère for an extra gourmet touch.
- Onion – Thinly sliced onions enhance the flavor of the dish with a mild sweetness.
- Garlic – Minced garlic gives the dish an aromatic depth.
- Butter – A little butter ensures the sauce is luscious and flavorful.
- Flour – Used to create a roux for thickening the creamy sauce.
- Salt and Pepper – Essential for seasoning the potatoes and the sauce.
- Fresh Parsley (optional) – A garnish of parsley adds color and freshness.
How to Make Dad’s Creamy Cheesy Au Gratin Potatoes
Crafting this delicious dish is simple and rewarding. Follow these steps to create a casserole full of creamy, cheesy goodness:
Step 1:
Preheat your oven to 375°F (190°C) and grease a 9×13-inch baking dish with butter or non-stick spray. This prevents sticking and makes cleanup a breeze.
Step 2:
Wash, peel, and thinly slice the potatoes (about 1/8-inch thick). Use a mandoline slicer for even cuts, ensuring the potatoes cook evenly.
Step 3:
In a saucepan, melt 2 tablespoons of butter over medium heat. Add minced garlic and cook until fragrant, about 30 seconds. Whisk in 2 tablespoons of flour and cook for 1-2 minutes, stirring constantly, to make a roux.
Step 4:
Gradually pour in 2 cups of heavy cream, whisking to avoid lumps. Bring the mixture to a simmer, stirring frequently, until thickened. Season with salt and pepper to taste. Remove from heat.
Step 5:
Spread a layer of sliced potatoes across the bottom of the prepared dish. Sprinkle a handful of thinly sliced onions on top, followed by a layer of shredded cheddar cheese. Repeat these layers until all ingredients are used, finishing with a generous layer of cheese on top.
Step 6:
Pour the cream sauce evenly over the layered potatoes, allowing it to seep through. Cover the dish with foil, ensuring it’s sealed tightly to trap the steam.
Step 7:
Bake in the preheated oven for 45 minutes. Remove the foil and bake for an additional 15-20 minutes, or until the potatoes are tender and the cheese is golden and bubbly.
Step 8:
Let the dish rest for 5-10 minutes before serving. Garnish with fresh parsley if desired for a pop of color and freshness. Serve warm and enjoy!

How Long to Bake Au Gratin Potatoes
The baking time for au gratin potatoes depends on the thickness of the potato slices and the size of your dish. You want the potatoes to be fork-tender and the cheese to form a golden, bubbly crust. Here’s a general guideline:
- Thinly Sliced Potatoes (1/8 inch): Bake for 50-60 minutes at 375°F (190°C).
- Moderately Thick Slices (1/4 inch): Bake for 60-75 minutes.
- Extra Cheesy or Deep Dishes: You may need an additional 10-15 minutes to ensure the potatoes cook evenly.
Check the dish halfway through baking. If the cheese on top is browning too quickly, cover it loosely with foil and remove the foil during the last 10 minutes to achieve that perfect golden crust.
How to Store Leftovers
If you’re lucky enough to have leftovers, these au gratin potatoes store beautifully and are even more flavorful the next day.
- Refrigerator: Transfer leftovers to an airtight container and refrigerate for up to 4 days. To reheat, bake in a preheated oven at 350°F (175°C) until warmed through, or microwave in individual portions.
- Freezer: For longer storage, you can freeze the potatoes. Cool them completely, then place portions in freezer-safe containers for up to 1 month. Thaw overnight in the fridge and reheat in the oven.
Tips for the Best Au Gratin Potatoes
Here are some extra tips to ensure your dish turns out perfectly every time:
- Slice Evenly: Use a mandoline slicer to ensure consistent, thin potato slices. This helps them cook evenly.
- Choose the Right Potatoes: Starchy varieties like Russets or Yukon Golds work best as they absorb the cream beautifully and become tender without falling apart.
- Layer for Flavor: For extra depth, sprinkle a little cheese between the layers of potatoes, not just on top.
- Use Fresh Cheese: Grate your own cheese for the best melting and flavor. Pre-shredded cheese often contains anti-caking agents that can affect the texture.
- Test for Doneness: Insert a knife or fork into the center to check for tenderness. If the knife slides in easily, your potatoes are ready.
Save this recipe for your next dinner party or family gathering—it’s guaranteed to impress!
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Dad’s Creamy Cheesy Au Gratin Potatoes
- Total Time: 1 hour 20 minutes
- Yield: 6 servings 1x
Description
Dad’s Creamy Cheesy Au Gratin Potatoes are the perfect comfort food for any occasion. Layers of tender potatoes, rich cream, and gooey melted cheese come together to create a dish that’s both simple to make and irresistible. Whether served as a side for a holiday meal or a hearty dish on its own, this recipe is a surefire hit!
Ingredients
- 4 large Russet or Yukon Gold potatoes (peeled and thinly sliced)
- 2 cups heavy cream
- 2 cups shredded cheddar cheese (or a mix of Gruyère and cheddar for extra flavor)
- 2 tbsp unsalted butter (for greasing the baking dish)
- 2 garlic cloves (minced)
- 1 tsp salt
- 1/2 tsp ground black pepper
- 1/4 tsp ground nutmeg (optional, for a subtle warmth)
- 1/4 cup fresh parsley (chopped, for garnish)
Instructions
- Preheat the oven to 375°F (190°C). Grease a 9×13-inch baking dish with butter.
- Wash, peel, and thinly slice the potatoes (about 1/8-inch thick). Set aside.
- In a medium saucepan, heat the cream over low heat. Stir in minced garlic, salt, pepper, and nutmeg, and warm for 2-3 minutes (do not boil).
- Layer half of the sliced potatoes evenly in the prepared baking dish. Pour half of the cream mixture over the potatoes and sprinkle with half the shredded cheese.
- Repeat with the remaining potatoes, cream, and cheese, finishing with a generous layer of cheese on top.
- Cover the dish with aluminum foil and bake for 40 minutes. Remove the foil and continue baking for an additional 15-20 minutes, or until the potatoes are tender and the cheese is golden and bubbly.
- Let the dish cool for 5-10 minutes before serving. Garnish with fresh parsley if desired.
Notes
- For extra creaminess, substitute 1/2 cup of the cream with whole milk.
- Add cooked bacon bits or caramelized onions between the potato layers for additional flavor.
- Store leftovers in an airtight container in the fridge for up to 4 days or freeze for up to 1 month. Reheat in the oven at 350°F (175°C) until warmed through.
- Prep Time: 20 minutes
- Cook Time: 60 minutes
