Yes — French onion soup potato skins are real, and they’re absolutely delicious. This simple, crowd-pleasing appetizer blends the sweet, savory caramelized onion flavor of French onion soup with the crisp exterior and tender interior of baked potato skins. They’re ideal for a party, game day, or a cozy dinner. You can prepare the baked potatoes and caramelized onions ahead of time, then assemble and finish the potato skins in about 30 minutes. Because they’re baked rather than fried, they feel indulgent while staying lighter and are easier to make.
Why we love this recipe
Potato skins and French onion soup are both comforting favorites. Combining them yields a savory, satisfying bite: crisp potato edges, soft potato flesh, jammy caramelized onions, and melty Gruyère. The result is familiar yet unexpected — a perfect appetizer that’s easy to scale and quick to finish on the day you serve it.
What you’ll need
At a glance: starchy potatoes (russet or Idaho), rich caramelized onions, nutty Gruyère, butter, and simple finishing touches like sour cream, chives, and flaky salt.
- Russet or Idaho potatoes — Starchy varieties give crispy skins and fluffy interiors that hold up well as shells for the filling.
- Caramelized onions — Deeply browned, jammy onions are the heart of the French onion flavor. Make them ahead; they store well in the fridge or freezer.
- Gruyère — A classic choice for French onion soup: nutty, savory, and melty. If you require vegetarian cheese, look for Gruyère made without animal rennet.
How to make them
Overview: bake the potatoes, scoop most of the flesh, crisp the skins, add caramelized onions and Gruyère, then return to the oven until the cheese melts. Finish with sour cream, chives, salt, and pepper.
- Bake six small russet or Idaho potatoes until tender. Once cool enough to handle, cut each potato in half so the flatter sides can sit on the baking sheet. Scoop out most of the flesh, leaving about 1/4 inch attached to the skin; save the removed flesh for another use.
- Brush each skin top and bottom with melted butter and season with fine sea salt. Place the skins skin-side up on a wire rack set over a rimmed sheet pan and bake until crisp, about 20 minutes.
- Turn the skins right-side up, fill each with plenty of caramelized onions, and top with shredded Gruyère.
- Return to the oven for 4–6 minutes, until the cheese melts and bubbles. Finish with a dollop of sour cream if desired, minced chives, flaky sea salt, and freshly ground black pepper.
Expert tips and FAQs
Use a wire rack set over a rimmed baking sheet. Elevating the skins allows hot air to circulate and helps the edges crisp evenly.
Yes. Bake the potatoes and prepare the caramelized onions ahead of time. Assemble and finish the potato skins just before serving for best texture. Store leftovers in an airtight container in the refrigerator for up to a week; reheat in the oven or toaster oven.
More favorite baked appetizers
These baked options travel well on a party buffet and are easy to scale if you’re feeding a crowd.
- Classic or vegetarian potato skins
- Crispy baked buffalo wings
- Baked jalapeño poppers
- Crispy baked chicken tenders
- Baked turkey meatballs (great for subs)
- Asian-inspired pork meatballs
French Onion Soup Potato Skins
Equipment
- Wire cooling/rack that fits a half-sheet pan
- Rimmed half-sheet pan
Ingredients
- 6 small to medium baked potatoes
- 2 tablespoons (28 grams) salted butter, melted
- Fine sea salt
- 1 batch caramelized onions
- 4 ounces (113 grams) Gruyère cheese, shredded
- ½ cup (120 grams) sour cream, optional
- ¼ cup minced fresh chives
- Flaky sea salt and freshly ground black pepper
Instructions
- Preheat the oven to 450°F with a rack in the center. Place a wire rack on a rimmed half-sheet pan.
- Cut each baked potato in half lengthwise. Aim to place the flatter side down so the halves are wide, shallow, and stable.
- Scoop out most of the flesh from each half, leaving about 1/4 inch attached to the skins. Reserve the scooped potato for another use.
- Brush both tops and bottoms of the potato halves with melted butter and sprinkle with fine sea salt. Arrange them skin-side up on the wire rack.
- Bake for about 20 minutes, until skins are crisp and flesh is very tender.
- Flip the potato halves right-side up, spoon caramelized onions into each, and top with shredded Gruyère.
- Return to the oven for 4–6 minutes, until the cheese melts and becomes bubbly.
- Finish with a dollop of sour cream if desired, sprinkle with minced chives, flaky sea salt, and freshly ground black pepper. Serve warm.
Notes
- Russet or Idaho potatoes give the best texture for crispy skins and fluffy interior.
- Gruyère delivers the classic savory note. If you need vegetarian cheese, choose a Gruyère made without animal rennet.
- Make the baked potatoes and caramelized onions in advance; assemble and bake the filled skins right before serving.
- Leftovers keep up to a week in the refrigerator; reheat in the oven or toaster oven for best texture.
Nutrition
Nutrition information is an estimate and should be used as a guideline.