french onion scalloped potatoes

If you’re craving a rich, comforting side dish that melts in your mouth with every bite, this easy French onion scalloped potatoes recipe is an absolute must-try. Featuring layers of thinly sliced potatoes bathed in a creamy, cheesy sauce infused with sweet caramelized onions, this dish brings together the best of both worlds—classic scalloped potatoes and the unmistakable flavor of French onion soup. Perfectly savory and simple to make at home, these french onion scalloped potatoes will quickly become a family favorite for holidays, weeknight dinners, or whenever you want to treat yourself to something special.

Why You’ll Love This Recipe

• Comfort food bliss: Creamy, cheesy layers combine with the deep umami taste of caramelized onions for an irresistible cozy dish.
• Simple ingredients: Uses common pantry staples making it an accessible recipe for cooks of all levels.
• Versatile side dish: Pairs well with a wide variety of main courses from beef to vegetarian meals.
• Make-ahead friendly: Prepare it in advance and bake when you’re ready, perfect for busy schedules or entertaining.
• Impressive presentation: Golden browned top and tender layers make it look as good as it tastes.

Ingredients You’ll Need

This easy French onion scalloped potatoes recipe relies on a handful of simple yet essential ingredients that work harmoniously to build rich flavor, smooth texture, and enticing color. Each element elevates the dish—from the earthy potatoes to the savory caramelized onions and gooey cheese.

• Russet potatoes: Ideal for baking and holding their shape while absorbing the creamy sauce.
• Yellow onions: Caramelized until golden for that signature French onion sweetness and depth.
• Butter: Adds richness and helps soften the onions and potatoes.
• All-purpose flour: Thickens the creamy sauce to the perfect consistency.
• Beef broth: Imparts that classic French onion soup flavor without overpowering the dish.
• Heavy cream: Provides luscious creaminess to coat the potatoes beautifully.
• Gruyère cheese: Melts smoothly for a nutty, savory finish.
• Parmesan cheese: Gives a sharp, salty kick on top for a golden crust.
• Garlic: Adds subtle aromatic warmth and depth.
• Thyme: Fresh or dried, this herb enhances the overall savory profile.
• Salt and pepper: Essential for seasoning every layer perfectly.

Variations for French Onion Scalloped Potatoes

Feel free to get creative and customize your french onion scalloped potatoes to suit your tastes or dietary preferences. This recipe adapts easily, inviting you to experiment with different cheeses, add-ins, or make it vegetarian-friendly.

• Cheese swaps: Substitute Gruyère with Swiss, mozzarella, or cheddar for unique flavor profiles.
• Vegetarian version: Use vegetable broth instead of beef broth for a fully vegetarian option.
• Herb variations: Add rosemary, sage, or parsley alongside thyme for a fragrant twist.
• Extra texture: Sprinkle toasted breadcrumbs or crispy fried onions on top for crunch.
• Make it spicy: Include a pinch of cayenne, smoked paprika, or chili flakes for a subtle heat.

How to Make French Onion Scalloped Potatoes

Step 1: Caramelize the Onions

Start by slicing yellow onions thinly and slowly cook them in melted butter over low heat until they turn deep golden brown and sweetly fragrant. This process takes about 30-40 minutes but is absolutely worth the wait for that rich, savory depth.

Step 2: Prepare the Creamy Sauce

Sprinkle flour over the caramelized onions and stir well to create a roux. Gradually whisk in beef broth and heavy cream, cooking until the sauce thickens and becomes silky smooth. Season with thyme, salt, and pepper to infuse flavor throughout.

Step 3: Slice the Potatoes

Wash and peel your russet potatoes, then slice them thinly and evenly using a mandoline or sharp knife for consistent cooking and texture.

Step 4: Layer the Potatoes and Sauce

In a buttered baking dish, arrange one-third of the potato slices in an even layer. Pour over a third of the creamy onion sauce and sprinkle some Gruyère cheese. Repeat this layering two more times to build rich, cheesy, and creamy stacks.

Step 5: Add Parmesan and Bake

Top the assembled dish with grated Parmesan cheese for a crispy, golden crust. Bake uncovered at 375°F (190°C) for about 50-60 minutes until bubbling and tender when pierced with a fork.

Step 6: Rest Before Serving

Allow the dish to rest for 10-15 minutes after baking to set up and make slicing easier, while letting the flavors meld beautifully.

Pro Tips for Making French Onion Scalloped Potatoes

• Even slicing: Use a mandoline to ensure uniform potato slices for consistent cooking.
• Low and slow onions: Patience with caramelizing onions results in maximum sweetness and depth.
• Don’t rush baking: Fully cook potatoes through and develop a golden top by baking long enough.
• Layer seasoning: Season each layer lightly to build balanced flavor throughout the dish.
• Rest before serving: Helps the scalloped potatoes firm up for neat slicing and enhances taste melding.

How to Serve French Onion Scalloped Potatoes

Garnishes

Fresh thyme sprigs, finely chopped chives, or a sprinkle of extra grated Parmesan add bright notes and visual appeal to your scalloped potatoes.

Side Dishes

This dish pairs wonderfully with roasted pork, grilled steak, herb-roasted chicken, or a vibrant green salad for a well-rounded meal.

Creative Ways to Present

Serve french onion scalloped potatoes in individual ramekins for a charming, elegant look or in a rustic cast-iron skillet for cozy family-style sharing.

Make Ahead and Storage

Storing Leftovers

Place any leftovers in an airtight container and refrigerate for up to 4 days, keeping the flavors fresh and textures intact.

Freezing

This recipe freezes well; transfer cooled scalloped potatoes to a freezer-safe dish, cover tightly, and freeze for up to 2 months, making weeknight dinners a breeze.

Reheating

Reheat leftovers gently in the oven at 350°F (175°C) until warmed through, maintaining the creamy texture and crisp top without drying out.

FAQs

Can I make french onion scalloped potatoes dairy-free?

Yes! Swap out butter for olive oil, use plant-based cream alternatives, and choose dairy-free cheese to keep this recipe creamy while accommodating non-dairy diets.

What type of potatoes work best?

Russet potatoes are preferred due to their starchiness and ability to absorb sauce, resulting in a tender yet sturdy final dish.

How thin should I slice the potatoes?

A thickness of about 1/8 inch (3mm) ensures the potatoes cook evenly and meld perfectly with the sauce layers.

Can I prepare this recipe ahead and bake later?

Absolutely. Assemble the dish in advance, cover, and refrigerate; then bake when ready, adding a few extra minutes if baking straight from cold.

Is it possible to make this recipe vegetarian?

Yes! Simply replace beef broth with vegetable broth, and the dish remains rich, flavorful, and meat-free.

Final Thoughts

This easy French onion scalloped potatoes recipe is a spectacular way to elevate a classic side into something truly special. Its creamy, cheesy, and richly savory qualities offer incredible comfort and indulgence that everyone will adore. Whether you’re serving it alongside your favorite roast or simply craving a luscious potato dish, this recipe is straightforward enough for weeknights and impressive enough for guests. Dive in and experience the cozy satisfaction of french onion scalloped potatoes—you won’t regret it!

Related Posts

• Baked Boursin Salmon
• Cheddar Ranch Chicken Tater Tot Bake
• Gluten Free High Protein Lasagna

Print