Beaufort Cheese Recipe: Triple-Cheese Gratin With Buttery Crisp

This Beaufort cheese recipe transforms a classic French alpine cheese into a triple-cheese gratin with a buttery, golden crust that’s impossible to resist. 💛 The secret lies in combining Beaufort’s nutty depth with Gruyère’s meltability and sharp cheddar for balance, creating layers of flavor that rival any restaurant dish.

What makes this recipe special is how the cheese develops a crispy top while staying creamy inside—no soggy textures here.

The foundation starts with thinly sliced potatoes and onions, slow-cooked until tender but still holding their shape. Then comes the cheese—grated Beaufort, Gruyère, and cheddar—mixed with a rich béchamel sauce that binds everything together.

The key is patience: letting the gratin bake low and slow until the top turns a deep, buttery crisp, while the interior remains velvety and rich.

By the time it emerges from the oven, you’ll have a dish that’s restaurant-quality without the fuss: golden, bubbling, and so flavorful it disappears faster than you can say "fondue." The Beaufort adds a subtle sweetness and nutty complexity, while the crispy top provides satisfying texture with every bite.

This is comfort food at its finest—elegant enough for dinner parties but simple enough for a weeknight.

Serve it with a crisp green salad or roasted vegetables to balance the richness, or pair it with a glass of white wine for the full experience. The leftovers reheat beautifully, making it perfect for meal prep or entertaining. Here’s how to make it—step by step.

Ingredients for beaufort cheese

Six ingredients transform humble potatoes into restaurant-quality gratin with golden, buttery perfection.

The Beaufort and Gruyère are non-negotiable for authentic alpine flavor—Whole Foods or specialty cheese shops carry aged Beaufort, but Gourmet Getaway online has excellent selections. Look for Beaufort with visible crystal formations and a nutty, caramel-like aroma. Gruyère should be freshly grated from a block; pre-shredded loses its melt. For cheddar, Cabot or Vermont Sharp adds the perfect tangy contrast. The Yukon Gold potatoes are key: their waxy texture holds shape beautifully during slow cooking. Organic farms or Trader Joe's often carry these at reasonable prices.

No Beaufort? Comté or aged Parmigiano-Reggiano can substitute, though the flavor profile shifts slightly. Gruyère unavailable? Emmental or sharp white cheddar works in a pinch, but reduce to 3/4 lb total to maintain balance. The béchamel sauce requires full-fat dairy for proper texture—no skim milk substitutes here. For the potatoes, russets work too but slice slightly thicker to prevent overcooking. The thyme can be dried (use 1/4 tsp instead), but fresh adds that bright herbal note that elevates the dish. Prefer a different herb? Fresh parsley or tarragon both pair beautifully.

Freshly grated cheese keeps in the fridge for 3-4 days sealed in an airtight container, but for best results, grate just before baking. The potatoes should be prepped and parboiled the day before—they'll keep in the fridge for 24 hours without turning mushy. Assemble the gratin up to 6 hours ahead and refrigerate; let it sit at room temperature for 30 minutes before baking. Leftovers reheat beautifully—350°F for 15-20 minutes until bubbly. For make-ahead entertaining, this is a game-changer

Step-by-step instructions for triple-cheese gratin with buttery crisp

Master this French technique for a restaurant-worthy gratin with Beaufort's signature nutty depth.

Using a mandoline or sharp knife, slice the 3 lb Yukon Gold Potatoes into ¼-inch thick rounds. Soak them in cold water for 10 minutes to remove excess starch, then drain thoroughly. Thinly slice the 2 whole Yellow Onions into ⅛-inch rings. Arrange half the potatoes in a single layer in a 9x13-inch baking dish, slightly overlapping. Sprinkle with ½ tsp Diamond Crystal Kosher Salt. Repeat with remaining potatoes, then top with all onion slices. Brush each layer generously with 0.125 cup Extra-Virgin Olive Oil (about ⅙ of the total) to prevent browning.

This layered approach ensures even cooking and maximum crispiness. The onions add sweetness that balances the Beaufort's sharpness. Work quickly to prevent oxidation—you want those potatoes to stay bright and firm.

In a medium saucepan, melt the 0.75 cup Unsalted Butter over medium heat. Whisk in the 0.5 cup All-Purpose Flour and cook for 2 minutes until golden brown—this creates a flavorful roux. Gradually whisk in the 2 cups Whole Milk and 0.5 cup Heavy Cream, ensuring no lumps form. Stir in the 4 cloves minced Garlic Cloves, 1 tsp Diamond Crystal Kosher Salt, 0.25 tsp Fresh Nutmeg, and 0.25 tsp Freshly Ground Black Pepper. Simmer for 8-10 minutes until the sauce thickens enough to coat the back of a spoon.

The nutmeg here isn't just for flavor—it's traditional in French gratins and pairs perfectly with Beaufort's earthy notes. If the sauce thickens too much, whisk in 1-2 tablespoons of the reserved potato water to adjust consistency.

Preheat your oven to 375°F. In a large bowl, combine the 1.5 lb freshly grated Beaufort Cheese, 1 lb freshly grated Gruyère Cheese, and 1 lb freshly grated Sharp Cheddar Cheese. Stir in ½ tsp Diamond Crystal Kosher Salt and ¼ tsp Freshly Ground Black Pepper. Pour half of the béchamel sauce over the potato layers, then sprinkle half the cheese mixture evenly. Repeat with remaining sauce and cheese, pressing down gently to ensure even distribution.

Here's the thing—don't skip pressing the cheese down. It ensures every potato slice gets coated with that luxurious, melty cheese blanket. The Beaufort will dominate the flavor profile, but the Gruyère and Cheddar add complexity that makes this dish truly special.

Bake uncovered for 45-50 minutes until the top is deep golden brown and the edges are bubbling vigorously. For extra crispiness, broil for 2-3 minutes at the end—watch closely to prevent burning. Let rest for 10 minutes before serving to allow the cheese to set slightly.

This resting period is crucial. It lets the layers firm up just enough to slice cleanly while maintaining that creamy interior texture. The Beaufort's natural moisture creates a velvety mouthfeel that separates this from ordinary gratins.

Drizzle the top with remaining 0.125 cup Extra-Virgin Olive Oil and sprinkle with 0.25 cup chopped Fresh Thyme Leaves. Serve immediately with additional béchamel sauce on the side if desired. Each portion should reveal crispy potato edges, creamy cheese layers, and caramelized onions throughout.

The thyme adds a bright herbal note that cuts through the richness. For best results, serve with a simple green salad and crusty bread to soak up every last bit of that Beaufort-infused sauce. This is comfort food elevated to fine dining territory.

Storing and reheating this dish

Fridge Storage Tips

Store your gratin in an airtight container (I use glass Pyrex with snap-on lids) for up to 4 days in the fridge. The Beaufort cheese keeps the texture creamy, but the potatoes may absorb moisture—pat them dry before reheating.

Always let it cool completely before covering to prevent condensation buildup. 🥔

Freezer Prep Guide

For longer storage, freeze portions in single-serving containers for up to 3 months. Wrap tightly with plastic wrap first, then place in a freezer bag with all air squeezed out.

The Beaufort’s moisture content means it freezes beautifully, though the texture may become slightly grainier upon thawing. Label with the date—trust me, you’ll forget! ❄️

Oven Reheating Method

My preferred way to revive this gratin is in the oven at 350°F for 15-20 minutes, covered loosely with foil. The residual heat melts the Beaufort and Gruyère perfectly while keeping the top crispy.

If it looks dry, drizzle 1-2 tablespoons of whole milk over the top before reheating. This method preserves the buttery crisp you worked so hard to achieve. 🔥

Microwave Shortcut

For a quick fix, cover the gratin with a damp paper towel and microwave on 50% power for 2-3 minutes, stirring halfway. The Beaufort melts beautifully this way, but the texture won’t be as crispy.

Add a splash of heavy cream if it seems too dry—this restores some of that luxurious richness. Perfect for lazy weeknights! ⏰

Make-Ahead Pro Tips

Assemble the gratin up to 6 hours ahead and refrigerate uncovered. Let it sit at room temperature for 30 minutes before baking—this prevents steam buildup and ensures an even golden crust.

For entertaining, this is a game-changer: bake ahead, then reheat just before serving. The Beaufort’s flavor intensifies overnight, making it even more irresistible. 💫

Leftovers Reinvention

Turn cold gratin into cheesy potato croquettes by shaping leftovers into balls, dredging in breadcrumbs, and pan-frying until golden. Or slice and broil with a sprinkle of Gruyère for a crispy cheese-topped casserole. The Beaufort’s nutty notes shine in both applications—never waste a bite! 🌟

Frequently asked questions