If you are craving a comforting, savory treat that combines the rich flavors of caramelized onions with the creamy goodness of potatoes, this French Onion Twice Baked Potatoes Recipe is exactly what you need to try next. Imagine tender russet potatoes stuffed with luscious sour cream, the deep sweetness of slow-cooked onions, and melted Gruyère cheese – it’s like a classic French onion soup reinvented into a hearty side or main that everyone will rave about. This recipe takes simple ingredients and transforms them into something unforgettable and soul-soothing.

Ingredients You’ll Need
This French Onion Twice Baked Potatoes Recipe shines because of its straightforward but essential ingredients. Each one plays a vital role, whether it’s building flavor, adding creamy texture, or creating that irresistible golden top.
- Russet potatoes: The perfect choice due to their fluffy interior and sturdy skins that hold up well to baking and scooping.
- Olive oil: Adds a subtle richness when sautéing the onions and helps achieve the perfect caramelization.
- Yellow onion: Thinly sliced and cooked slow for that signature sweet, golden French onion flavor.
- Unsalted butter: Adds creaminess and helps mellow the onions as they soften and caramelize.
- Sugar: Helps to bring out the natural sweetness of the onions during cooking.
- Salt and black pepper: Essential seasonings to round out the dish and balance flavors.
- Sour cream: Adds tangy creaminess that makes the filling rich and smooth.
- Beef broth: Introduces depth and a savory umami note reflective of classic French onion soup.
- Gruyère or Swiss cheese: Half melted inside for gooeyness, half sprinkled on top for that bubbly, golden crust.
- Fresh thyme (optional): A fragrant herb garnish that adds an elegant touch and a hint of earthiness.
How to Make French Onion Twice Baked Potatoes Recipe
Step 1: Bake the Potatoes
Start by preheating your oven to 400°F (200°C). Wash your russet potatoes thoroughly and pierce them with a fork several times to allow steam to escape while baking. Pop them onto a baking sheet and bake for about an hour until they are fork-tender and the skins become delightfully crisp. This forms the perfect vessel for the filling to come.
Step 2: Caramelize the Onions
While the potatoes are baking, heat olive oil and butter in a large skillet over medium heat. Add your thinly sliced yellow onions, a pinch of sugar, salt, and black pepper. Let these cook slowly for 20 to 25 minutes, stirring occasionally, until the onions turn a rich, golden brown and develop that signature sweet, savory flavor. This step is key to achieving that authentic French onion taste.
Step 3: Scoop Out and Prepare the Potato Filling
Once the potatoes are cool enough to handle, cut them in half lengthwise. Carefully scoop out most of the fluffy insides, leaving a small border along the edge to keep the skins sturdy. Transfer the scooped potato flesh to a mixing bowl — this will become the creamy filling base.
Step 4: Combine the Filling Ingredients
In the bowl with the potato, add the caramelized onions (reserve some for topping), sour cream, beef broth, and half of the shredded Gruyère or Swiss cheese. Mix everything gently but thoroughly until creamy and smooth, seasoning to taste with additional salt and pepper. This mixture is where all the wonderful flavors merge into the heart of the dish.
Step 5: Stuff the Potatoes
Now spoon the luscious filling back into each potato skin, mounding it slightly for a generous helping. Sprinkle the remaining shredded cheese over the top, then add the reserved caramelized onions for extra punch. Your twice baked potatoes are almost ready to reach golden cheesy perfection.
Step 6: Final Bake
Return the stuffed potatoes to your baking sheet and bake in the same 400°F (200°C) oven for another 15 to 20 minutes. This step melts the cheese into a bubbly, irresistible topping and warms everything through so each bite is deliciously hot and satisfying. Finish with a sprinkle of fresh thyme, if using, before serving.
How to Serve French Onion Twice Baked Potatoes Recipe

Garnishes
The beauty of this French Onion Twice Baked Potatoes Recipe is how easily it can be elevated with simple garnishes. Fresh thyme not only adds color but a gentle herbal note that pairs perfectly with the deep, sweet onion flavors. For a pop of freshness, consider chopped chives or a light drizzle of crème fraîche.
Side Dishes
These potatoes are hearty enough to serve as a main with a simple green salad for balance. They also make a perfect companion to roasted meats, grilled steak, or even a roast chicken dinner. Crisp steamed vegetables or a tangy coleslaw can provide a refreshing contrast to the creamy texture of the potatoes.
Creative Ways to Present
For a fun twist, you can serve your French Onion Twice Baked Potatoes Recipe in a hollowed-out potato skin boat, arranging several on a platter for sharing. Alternatively, mini versions using smaller potatoes can become charming appetizers or party bites. Experimenting with different cheese blends or adding a sprinkle of crispy bacon can make this dish even more personalized and festive.
Make Ahead and Storage
Storing Leftovers
If you have leftovers, store them in an airtight container in the refrigerator. They will keep well for 2 to 3 days without losing much of their original flavor or texture. Just be sure to cool the potatoes completely before refrigeration to avoid condensation.
Freezing
For longer storage, you can freeze these twice baked potatoes. Wrap each one individually in foil and place them in a freezer-safe bag or container. They can be frozen for up to 1 month. Keep in mind that freezing might slightly change the texture, but the flavor will remain delicious.
Reheating
To reheat, remove any foil and place the potatoes in an oven preheated to 350°F (175°C). Bake for about 20-25 minutes until heated through and the cheese is bubbling again. Avoid microwaving if you want to preserve the crispy skin and creamy interior texture.
FAQs
Can I use a different type of potato?
Russet potatoes are ideal for this recipe because they have a fluffy interior that works well for scooping and mixing. However, you can use Yukon Gold potatoes for a creamier texture, though the skins might be less sturdy.
Is there a vegetarian version of this recipe?
Absolutely! Simply substitute beef broth with vegetable broth and use vegetarian cheese to keep it meat-free without sacrificing flavor.
Can I prepare the filling ahead of time?
Yes, you can prepare the onion and potato filling a day in advance and store it in the refrigerator. Just fill and bake the potatoes right before serving for the best results.
What cheese works best besides Gruyère or Swiss?
Gruyère and Swiss are classic choices for their meltability and flavor, but you could also try sharp cheddar, fontina, or mozzarella for a different twist.
How do I get the onions to caramelize perfectly?
Patience is key! Cook the onions slowly over medium heat with a bit of butter and sugar, stirring occasionally. Rushing this step can lead to burnt or unevenly cooked onions rather than that deep, sweet caramelized flavor.
Final Thoughts
If you’re looking to impress with a recipe that feels both elegant and comforting, this French Onion Twice Baked Potatoes Recipe is your new go-to. It’s a terrific way to elevate simple pantry staples into something truly special, with layers of rich flavor and satisfying textures. Whether it’s for a cozy weeknight or a festive gathering, these potatoes are sure to become a beloved favorite in your kitchen. Don’t be surprised if everyone asks for seconds!
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French Onion Twice Baked Potatoes Recipe
- Prep Time: 20 minutes
- Cook Time: 1 hour 20 minutes
- Total Time: 1 hour 40 minutes
- Yield: 4 servings
- Category: Side Dish
- Method: Baking
- Cuisine: French
Description
These French Onion Twice Baked Potatoes combine the rich flavors of caramelized onions and creamy, cheesy potato filling for a comforting and elegant side dish. Baked until tender, filled with a mixture of sour cream, beef broth, Gruyère cheese, and caramelized onions, then baked again until golden and bubbly, this recipe is perfect for a cozy dinner or special occasion.
Ingredients
Potatoes
- 4 large russet potatoes
Caramelized Onions
- 3 tablespoons olive oil
- 1 large yellow onion, thinly sliced
- 2 tablespoons unsalted butter
- 1 teaspoon sugar
- 1/2 teaspoon salt
- 1/2 teaspoon black pepper
Filling
- 1 cup sour cream
- 1/2 cup beef broth
- 1 cup shredded Gruyère or Swiss cheese, divided
Garnish (Optional)
- 1 tablespoon chopped fresh thyme
Instructions
- Preheat and Bake Potatoes: Preheat your oven to 400°F (200°C). Wash and scrub the potatoes thoroughly, then pierce each several times with a fork. Place them on a baking sheet and bake for 1 hour or until tender when pierced with a fork. Remove from the oven and allow to cool slightly.
- Caramelize Onions: While the potatoes bake, heat olive oil in a large skillet over medium heat. Add the thinly sliced onion, butter, sugar, salt, and black pepper. Cook, stirring occasionally, for 20-25 minutes until the onions turn golden brown and caramelized. Set aside.
- Scoop Potato Flesh: Once the potatoes are cool enough to handle, cut each in half lengthwise. Carefully scoop out the insides, leaving a small border of potato to keep the skins intact. Transfer the scooped-out potato flesh to a mixing bowl.
- Prepare Filling: To the bowl with potato flesh, add caramelized onions (reserve some for topping), sour cream, beef broth, and half of the shredded cheese. Mix everything until creamy and smooth. Adjust seasoning with salt and pepper as needed.
- Stuff Potatoes: Spoon the filling back into the potato skins, mounding it slightly. Top each stuffed potato with the remaining shredded cheese and the reserved caramelized onions. Arrange the filled potatoes on the baking sheet.
- Bake Again and Garnish: Return the baking sheet to the oven and bake for 15-20 minutes or until the cheese is melted and bubbly. Remove from oven and garnish with chopped fresh thyme if desired. Serve warm.
Notes
- Make sure to pierce the potatoes well before the first bake to allow steam to escape.
- Caramelizing onions slowly is key to developing their sweet, rich flavor.
- Gruyère cheese provides a nutty, melty texture but Swiss cheese is a good substitute if preferred.
- Beef broth adds depth to the filling; however, vegetable broth can be used for a lighter flavor.
- The filling can be made ahead and refrigerated for up to 24 hours before baking the second time.
- For extra crisp skins, brush the potato skins with a little olive oil before the second bake.

