I’m convinced these French onion baked potatoes are what happens when a steakhouse side and your favorite soup become one glorious, cheese-pulled dinner. One bite of that jammy onion, Gruyère-loaded potato and I’m all in.

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I’m fully obsessed with these French Onion Baked Potatoes because they hit every part of my brain that wants something rich, salty, cheesy, and ridiculous for dinner. I love a baked potato, but stuffing it with jammy yellow onions and Gruyere turns it into the kind of meal I keep thinking about later.

But seriously. The edges get crisp, the center stays fluffy, and the top goes all melty and browned in that very dangerous way.

And I’m not pretending this is fancy. It’s just bold, messy, beefy-onion flavor piled onto a potato, which is exactly why I adore it.

Ingredients

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Russet potatoes bake up fluffy inside, with sturdy skins that hold all the good stuff.
Olive oil helps the potato skins get crisp, salty, and snack-level good.
Kosher salt makes everything pop without tasting too fancy or fussy.
Butter gives the onions that rich, cozy French onion soup feeling.
Yellow onions turn sweet and jammy, basically the whole reason this works.
Sugar helps the onions caramelize deeper, especially when you’re feeling impatient.
Fresh thyme adds a little herby bite so it doesn’t taste flat.
Beef broth brings savory depth, like soup vibes tucked into a potato.
Worcestershire sauce adds that salty, tangy thing you can’t quite name.
White wine or sherry makes it feel restaurant-ish, but it’s totally optional.
Gruyere melts into nutty, stretchy cheese heaven.
Plus, it browns beautifully.
Black pepper adds a little kick at the end, nothing too wild.

Ingredient Quantities

4 large russet potatoes, scrubbed

2 tablespoons olive oil, plus 2 tablespoons more for onions

Kosher salt

4 tablespoons unsalted butter

3 large yellow onions, thinly sliced

1 teaspoon granulated sugar

1 teaspoon kosher salt for onions

2 teaspoons fresh thyme leaves, chopped

1/2 cup low sodium beef broth

1 tablespoon Worcestershire sauce

1/4 cup dry white wine or dry sherry, optional

1 1/2 cups Gruyere cheese, shredded

Freshly ground black pepper to taste

How to Make this

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1. Preheat oven to 400 F. Scrub potatoes, rub with 2 tablespoons olive oil and a generous pinch of kosher salt, then place on a baking sheet and bake until tender when pierced, about 50 to 60 minutes.

2. While potatoes bake, heat 2 tablespoons olive oil and 4 tablespoons unsalted butter in a large skillet over medium heat.

3. Add 3 thinly sliced yellow onions with 1 teaspoon granulated sugar and 1 teaspoon kosher salt, stir to coat, and cook over medium to medium low heat, stirring occasionally, until deep golden brown and caramelized, about 30 to 40 minutes.

4. Stir in 2 teaspoons chopped fresh thyme and cook 1 minute to release aroma.

5. If using, pour in 1/4 cup dry white wine or dry sherry to deglaze the pan, scraping up browned bits, and cook until the liquid mostly evaporates, about 2 to 3 minutes.

6. Add 1/2 cup low sodium beef broth and 1 tablespoon Worcestershire sauce, bring to a simmer and cook until slightly reduced, about 3 to 5 minutes; adjust seasoning with freshly ground black pepper to taste.

7. Remove potatoes from oven and let cool slightly, then cut a lengthwise slit in each and gently squeeze ends to open; use a fork to fluff the potato interior and season with a light sprinkle of kosher salt if desired.

8. Spoon a generous amount of the French onion mixture into each opened potato, then top each with about 1 1/2 cups Gruyere cheese divided evenly among the potatoes.

9. Place stuffed potatoes under a hot broiler or back in the oven at 450 F until the Gruyere is fully melted and bubbly with light browning, about 2 to 5 minutes; watch closely to prevent burning.

10. Remove, finish with additional freshly ground black pepper and a few extra thyme leaves if desired, and serve hot.

Equipment Needed

1. Oven
2. Baking sheet (rimmed)
3. Large skillet (12 inch)
4. Cutting board
5. Chef knife
6. Vegetable brush or scrubber
7. Fork for fluffing potatoes
8. Wooden spoon or heatproof spatula
9. Measuring spoons and measuring cup
10. Ovenproof broiler rack or sheet for melting cheese

FAQ

What type of potatoes work best and why? Russet potatoes are ideal because their high starch content gives a fluffy interior that soaks up the onion gravy and melted cheese.

Can I make the caramelized onions ahead of time? Yes. Caramelized onions can be cooked up to 3 days ahead and refrigerated in an airtight container. Rewarm gently before assembling to loosen any thickened juices.

Do I have to use beef broth and Worcestershire sauce? The beef broth and Worcestershire add classic French onion depth and umami. For a lighter or vegetarian version, substitute low sodium vegetable broth and omit the Worcestershire or use a vegetarian Worcestershire alternative.

How do I get the potato skin crispy while keeping the inside fluffy? Rub the scrubbed potatoes with olive oil and kosher salt, then bake directly on the oven rack or on a perforated tray at 425 F until tender. High heat and oil on the skin give a crisp exterior and a fluffy interior.

Can I use a different cheese than Gruyere? Gruyere melts beautifully and complements the onions, but alternatives like Emmental, Comte, or a sharp white cheddar will also work. Use about 1 1/2 cups shredded cheese total.

How long can leftovers be stored and how should I reheat them? Store leftover assembled or unassembled potatoes in the refrigerator for up to 3 days. Reheat in a 350 F oven until warmed through, about 15 to 20 minutes, to preserve crispness. Microwaving will be faster but may make the skin soft.

French Onion Baked Potatoes Recipe Substitutions and Variations

Russet potatoes: Yukon Gold for creamier texture and thinner skins, or sweet potatoes for a sweeter, earthier twist.
Low sodium beef broth: low sodium chicken broth for a milder flavor, or mushroom broth for a richer, umami-forward profile.
Gruyere cheese: Comté or Emmental for similar nutty melt, or sharp white cheddar for a bolder taste.
Unsalted butter: use an equal amount of olive oil for a lighter finish, or browned butter for added nuttiness.

Pro Tips

1. Roast the potatoes directly on the oven rack or on a wire rack set over a sheet pan so air can circulate and the skins come out crisp and not soggy. Prick them once or twice if you want steam to escape a little faster, but avoid overpricking or they will dry out.

2. Caramelize the onions slowly over medium low heat and resist the urge to raise the temperature. Stir only every few minutes so they develop deep color and concentrated sweetness. If they start to stick too much, add a tablespoon or two of water to loosen browned bits rather than increasing the heat.

3. When deglazing, scrape all the fond from the pan with wine or sherry, then let the liquid reduce until nearly evaporated before adding beef broth. That reduction intensifies flavor and prevents your onion mix from becoming watery when spooned into the potatoes.

4. Shred the Gruyere yourself and bring it to room temperature before topping. Pre-shredded cheese contains anti caking agents that can affect melt, and warm cheese melts more evenly, giving you a glossy, stretchy top.

5. Finish under a hot broiler but watch it closely. Place the rack a bit farther from the element for a minute or two to let cheese melt, then move it up briefly to get light browning. Have a timer or stay by the oven to prevent it from going from perfect to burned in seconds.

French Onion Baked Potatoes Recipe

Recipe by Bob Jones

0.0 from 0 votes

Servings

servings

Calories

466

kcal

Equipment: 1. Oven
2. Baking sheet (rimmed)
3. Large skillet (12 inch)
4. Cutting board
5. Chef knife
6. Vegetable brush or scrubber
7. Fork for fluffing potatoes
8. Wooden spoon or heatproof spatula
9. Measuring spoons and measuring cup
10. Ovenproof broiler rack or sheet for melting cheese

Ingredients

4 large russet potatoes, scrubbed
2 tablespoons olive oil, plus 2 tablespoons more for onions
Kosher salt
4 tablespoons unsalted butter
3 large yellow onions, thinly sliced
1 teaspoon granulated sugar
1 teaspoon kosher salt for onions
2 teaspoons fresh thyme leaves, chopped
1/2 cup low sodium beef broth
1 tablespoon Worcestershire sauce
1/4 cup dry white wine or dry sherry, optional
1 1/2 cups Gruyere cheese, shredded
Freshly ground black pepper to taste

Directions

Preheat oven to 400 F. Scrub potatoes, rub with 2 tablespoons olive oil and a generous pinch of kosher salt, then place on a baking sheet and bake until tender when pierced, about 50 to 60 minutes.
While potatoes bake, heat 2 tablespoons olive oil and 4 tablespoons unsalted butter in a large skillet over medium heat.
Add 3 thinly sliced yellow onions with 1 teaspoon granulated sugar and 1 teaspoon kosher salt, stir to coat, and cook over medium to medium low heat, stirring occasionally, until deep golden brown and caramelized, about 30 to 40 minutes.
Stir in 2 teaspoons chopped fresh thyme and cook 1 minute to release aroma.
If using, pour in 1/4 cup dry white wine or dry sherry to deglaze the pan, scraping up browned bits, and cook until the liquid mostly evaporates, about 2 to 3 minutes.
Add 1/2 cup low sodium beef broth and 1 tablespoon Worcestershire sauce, bring to a simmer and cook until slightly reduced, about 3 to 5 minutes; adjust seasoning with freshly ground black pepper to taste.
Remove potatoes from oven and let cool slightly, then cut a lengthwise slit in each and gently squeeze ends to open; use a fork to fluff the potato interior and season with a light sprinkle of kosher salt if desired.
Spoon a generous amount of the French onion mixture into each opened potato, then top each with about 1 1/2 cups Gruyere cheese divided evenly among the potatoes.
Place stuffed potatoes under a hot broiler or back in the oven at 450 F until the Gruyere is fully melted and bubbly with light browning, about 2 to 5 minutes; watch closely to prevent burning.
Remove, finish with additional freshly ground black pepper and a few extra thyme leaves if desired, and serve hot.

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.