Betty Crocker's Au Gratin Potatoes Recipe: Crispy-Topped Cheese Haven in One Pan

Betty Crocker's au gratin potatoes recipe delivers that golden, crispy-topped comfort food perfection in one simple pan. The secret lies in layering thinly sliced potatoes with a rich cheese sauce that transforms into a bubbling, cheesy masterpiece by the time it emerges from the oven.

I've tested this recipe countless times, and the difference between a good au gratin and a great one comes down to patience—letting the cheese melt slowly for that irresistible texture we all crave.

This classic side dish starts with thinly sliced potatoes that cook evenly, absorbing the creamy cheese sauce while developing that signature crispy crust on top. The recipe uses a combination of cheddar and Gruyère for depth, but I've also experimented with adding a touch of cream cheese for extra richness.

Baking at 375°F ensures the cheese melts perfectly without burning, while the potatoes stay tender underneath that crunchy, cheesy blanket.

The result is a dish so comforting it feels like a hug—creamy, cheesy, and impossibly crispy at the same time. Every bite delivers that perfect contrast of textures, making it the ultimate side for holidays, family dinners, or when you just need a little extra love on your plate.

Whether you're serving it alongside roasted chicken or a hearty steak, this au gratin brings the warmth of a home-cooked meal to any table.

For those who love customization, I've included variations like adding crispy bacon or fresh herbs, but the classic version is foolproof and always delivers. Let's get started on creating your own crispy-topped cheese haven—one layer at a time.

Ingredients for betty crocker au gratin potatoes

Thinly sliced potatoes, rich cheeses, and a crispy golden top—just 14 ingredients for ultimate comfort.

The potatoes are non-negotiable—Russets have the starch for that perfect texture. Whole Foods or local markets usually carry the best, but any grocery store's Russets work. Slice them 1/8-inch thick with a mandoline for even cooking. The Gruyère? Look for aged wheels—the flavor is worlds better than pre-shredded. I grab mine from Whole Foods or specialty cheese shops when I can afford it, but the regular supermarket stuff still delivers. For the cheese sauce, sharp cheddar adds bite while Gruyère brings that nutty depth everyone craves.

No white wine? Chicken broth works—just add a splash of lemon juice. Pre-shredded cheese? Shred it yourself—it melts so much better. Short on thyme? Dried works at half the amount. The butter topping is key—cold butter plus panko gives that perfect crisp. Want extra richness? Add 2 oz cream cheese to the sauce. The flour? Lightly toast it first to remove raw taste—just heat in a dry pan for 30 seconds. And if you're feeling fancy, add a pinch of nutmeg to the cheese mix.

This reheats beautifully—just cover with foil and warm in the oven for 10-15 minutes. Keeps for 4 days in the fridge, freezes for 3 months. I always make a double batch because it's that good. Store leftovers in a sealed container with a sprinkle of milk on top to keep it moist. The crispy topping? Add it fresh after baking—it's worth the extra minute.

Step-by-step instructions for betty Crocker's au gratin potatoes recipe

Here's how to create that perfect golden crust and creamy interior everyone loves.

Begin by peeling the 2.5 lb russet potatoes and slicing them into even 1/8-inch thick rounds. I use a mandoline for precision—it ensures consistent thickness so the potatoes cook evenly. As you slice, soak the potato rounds in cold water for 10 minutes to remove excess starch, which helps prevent a gummy texture later.

Drain the potatoes thoroughly and pat them completely dry with paper towels. This step is crucial—any moisture left on the potatoes will steam instead of crisp during baking. Arrange the sliced potatoes in a single layer on a baking sheet and sprinkle lightly with 1 teaspoon of the 1.5 tsp salt and 0.25 tsp of the 0.5 tsp ground black pepper. Toss gently to distribute evenly.

In a large skillet, melt the 2 tbsp unsalted butter over medium heat. Add the thinly sliced 1 whole yellow onion and cook for 5-6 minutes until softened and translucent. Stir in the minced 3 cloves garlic and cook for another 30 seconds until fragrant—don't let it brown or it'll turn bitter.

Sprinkle in the 2 tbsp all-purpose flour and whisk continuously for 1-2 minutes to create a smooth roux. This will form the foundation of your sauce. Slowly pour in the 0.25 cup dry white wine, whisking constantly to prevent lumps. Let it simmer for 2-3 minutes until the alcohol flavor cooks off completely.

Reduce heat to low and gradually whisk in the 1 cup heavy cream and 0.5 cup warmed whole milk. Stir in the 1 tbsp fresh thyme leaves, remaining 0.5 tsp salt, and remaining 0.25 tsp ground black pepper. Bring the mixture just to a gentle simmer, then remove from heat.

In a separate bowl, combine the 1.5 cups shredded sharp cheddar cheese and 1 cup shredded gruyère cheese. Slowly sprinkle this cheese mixture into the warm cream sauce while whisking vigorously. The heat from the sauce will melt the cheese completely, creating a velvety texture. If the mixture thickens too much, whisk in 1-2 tablespoons of warm milk to reach your desired consistency.

Preheat your oven to 375°F. In a 9x13-inch baking dish, create a single layer of potato slices on the bottom, slightly overlapping if needed. Pour about one-third of the cheese sauce over the potatoes, spreading it evenly. Repeat with another layer of potatoes and another third of the sauce. Finish with the final layer of potatoes and the remaining sauce.

Press down gently on the top layer of potatoes to ensure good contact with the sauce. This helps create that signature crispy top. Sprinkle the 0.25 cup breadcrumbs evenly over the top and dot with any remaining butter cut into small pieces. Bake uncovered for 50-60 minutes until the top is golden brown and the edges bubble around the sides.

For the final 5 minutes of baking, increase the oven temperature to 425°F. This broiling step creates that coveted crispy crust we're after. Watch carefully—you want it golden brown, not burnt. The potatoes are done when a knife inserted into the center comes out hot but clean.

Let the au gratin potatoes rest for 10 minutes before serving. This resting period allows the layers to set slightly, making it easier to slice and serve. The result should be tender potatoes with a creamy, cheesy sauce and a beautifully crispy top that everyone will rave about. Serve immediately with a simple green salad or roasted vegetables for a complete meal.

Health benefits of these flavors

Comfort Food Energy

Au gratin potatoes are a calorie-dense comfort food that provides sustained energy thanks to their combination of complex carbs and healthy fats. A single serving delivers about 350 calories, with 45 grams of carbs (mostly from potatoes) that fuel your body for hours.

The cheese and cream add 18 grams of fat, which helps keep you full and satisfied—perfect for cold weather or post-workout meals. 💪

Protein for Muscle Repair

While not a protein powerhouse like meat or beans, this dish still offers 12 grams of protein per serving thanks to the cheese and cream. The Gruyère and cheddar provide all nine essential amino acids, supporting muscle repair and recovery.

I've noticed this makes au gratin a great side for athletes or anyone needing extra protein without the heaviness of meat. Pair it with grilled chicken for a complete protein profile.

Calcium & Vitamin Boost

The cheese sauce delivers 30% of your daily calcium needs per serving, supporting strong bones and teeth. The Gruyère adds extra calcium while the potatoes provide vitamin C (about 15% daily value) and potassium (about 10% daily value).

I always add a sprinkle of fresh parsley after baking for an extra vitamin K boost—just 1 tablespoon adds 5% of your daily needs.

Healthy Fats for Heart Health

The heavy cream and butter in this recipe contain saturated fats, but the monounsaturated fats in the cheese actually support heart health when consumed in moderation. The omega-3s in Gruyère (especially aged varieties) help reduce inflammation.

For a lighter version, I sometimes swap half the heavy cream for Greek yogurt—it cuts calories while keeping the creamy texture. 💛

Fiber for Digestion

While potatoes themselves aren't high in fiber, the skin-on version (if you leave skins) adds about 3 grams per serving. For extra fiber, I sometimes stir 1 tablespoon of whole wheat flour into the cheese sauce or sprinkle 1 tablespoon of flaxseeds on top before baking.

This adds 2 extra grams of fiber without changing the flavor much. The fiber helps balance the dish's richness.

Customizable for Dietary Needs

This recipe can be adapted for lower-fat diets by using low-fat cheese (though texture suffers) or reduced-fat cream. For gluten-free versions, swap the flour for cornstarch in the roux. I've also made a vegan version using cashew cream and nutritional yeast—it's not identical but still delicious.

The beauty of au gratin is how versatile it can be while keeping that comforting factor. ✨

Frequently asked questions