Tartiflette is a French alpine potato gratin made with tender potatoes, smoky bacon lardons, sweet sautéed onions, and a whole wheel of Reblochon melted on top. What makes this version different is a quick white-wine deglaze and a small “sauce” built from the bacon fat and onions (plus optional garlic butter), so the dish stays rich and flavorful without needing a lot of extra ingredients. It’s the kind of hearty comfort food you make when it’s cold outside—but it also works year-round for a cozy Sunday dinner, a ski-trip-style meal at home, or a crowd-friendly potluck casserole.

This tartiflette is based on my YouTube video, with a few adjustments since publication to make it more consistent for home kitchens (especially the potato cook, baking dish size, and a small optional splash of cream for extra silkiness). The goal here is a traditional, bistro-style tartiflette—not a “lighter” tartiflette, not a quick microwave shortcut, and not a creamy Dauphinois-style gratin. If you’re looking for a different potato comfort-food lane, Traditional Gratin Dauphinois is the one built around cream-and-garlic baked layers, while tartiflette is all about bacon, onions, and Reblochon. If you want another baked, cozy French dish that leans more stew-like than cheesy, Traditional Homemade Pot Au Feu is the classic slow-simmered option.

The key to tartiflette that tastes like the mountains is balance: you want potatoes cooked just right (tender but not collapsing), onions that are soft and lightly golden, and bacon that renders enough fat to carry the flavor—but not so much that the dish turns greasy. The cheese does most of the heavy lifting, so use a ripe wheel of Reblochon if you can. When you can’t, you can still make an excellent version with a budget-friendly substitute (see substitutions). And because tartiflette is naturally rich, a crisp salad on the side is not optional—it’s what makes the whole plate feel “complete.”

Ingredients overview

Potatoes: Waxy potatoes are the safest choice for tartiflette because they hold their shape when baked. Yukon Gold works well in Canada and the USA. Fingerlings are great too. If you use russets, the texture gets softer and more mash-like.

Bacon lardons: Thick-cut smoked bacon is ideal. If it’s very salty, skip added salt entirely (this dish usually needs none). The bacon fat becomes the cooking medium for the onions—huge flavor boost.

Onions: Two medium onions give you the sweet base. Yellow onions are classic; red onions work if that’s what you have.

Reblochon: Leave it at room temp while you prep. It melts more evenly and gets that glossy alpine pull. Cutting it in half horizontally makes it easier to blanket the top.

White wine: A small splash of dry white wine helps lift the richness and pulls up the browned bits from the pan. It shouldn’t taste “winey”—it should taste like you built depth.

Optional cream: Not required, but a small amount makes the dish more forgiving and helps keep the bottom layer saucy (especially if you baked it a little longer or your potatoes were on the starchy side).

How this tartiflette differs from similar recipes

This recipe is built for a classic, melty, traditional tartiflette—the kind you scoop from a baking dish and serve with a bright salad. It is not:

a “quick skillet” potato dish like Lyonnaise Potatoes (French Sautéed Potatoes) where the goal is crispy edges and pan-fried texture: https://www.micheldumas.com/en/lyonnaise-potatoes-french-sauteed-potatoes/
a cream-first baked gratin like Traditional Gratin Dauphinois where the sauce is mostly cream: https://www.micheldumas.com/en/traditional-gratin-dauphinois-recipe/
a fully different baked comfort profile like Savoyard Poutine With Raclette (cheese curd/poutine vibes rather than alpine gratin): https://www.micheldumas.com/en/savoyard-poutine-with-raclette/
a stew-style winter dish like Stovetop Cassoulet (Easy French Duck and Sausage Stew) which is hearty but not cheesy: https://www.micheldumas.com/en/stovetop-cassoulet-recipe-easy-french-duck-and-sausage-stew-no-oven-shorter-version/

If you want the most classic baseline tartiflette format, the companion post is Easy Traditional Tartiflette Recipe With Reblochon Or Budget Cheese: https://www.micheldumas.com/en/easy-traditional-tartiflette-recipe-with-reblochon-or-budget-cheese-french-alpine-comfort-food/

Step-by-step instructions

1) Prep the oven and baking dish

Heat the oven to 350°F. Use a 9×13-inch baking dish (or something close). This size matters: too small/deep and the tartiflette needs more time; too wide/shallow and it can dry faster.

2) Start the potatoes (the consistency step)

Peel the potatoes if you want a more classic texture; keep the skins if you like it rustic. Cut into large chunks (about 1–1½ inches). Put the potatoes in a pot, cover with cold water, and bring to a simmer. Salt the water lightly only if your bacon is not salty (most smoked bacon is salty enough that you can skip it).

Simmer until the potatoes are tender but not falling apart, about 10–14 minutes depending on size. Drain well. The goal is potatoes that keep structure so they don’t turn to mash when baked under the cheese.

3) Render the bacon lardons

Cut thick bacon into lardons (about ½ inch). Add them to a cold skillet and set over medium heat. Starting cold helps render fat slowly, which gives better texture and flavor. Cook until browned and the fat has rendered—usually 8–10 minutes. If there’s an extreme amount of fat, spoon out a little (leave about 2–3 tablespoons in the pan).

4) Cook the onions in the bacon fat

Add sliced onions to the skillet and cook, stirring, until soft and lightly golden—about 6–8 minutes. This is where the tartiflette builds its signature sweetness.

If using garlic butter, add a small spoonful near the end so it doesn’t burn. The flavor should be warm and savory, not sharp.

5) Deglaze with white wine

Pour in the dry white wine and scrape the bottom of the pan to lift the browned bits. Let it reduce for 1–2 minutes. Grind in black pepper. Taste the bacon-onion mixture; if it’s already salty, don’t add salt at all.

6) Build the layers

In the baking dish, combine:

drained potatoes
bacon and onions (including the flavorful fat in the pan)

Toss gently so the potatoes get coated. If using cream, drizzle it over now and toss once more. This creates a lightly saucy base under the cheese.

7) Prep and add the Reblochon

Cut the Reblochon in half horizontally so you have two thinner rounds. Lay the cheese on top, rind side up. If you prefer more cheese throughout, cube part of it and mix into the potatoes, then top with the remaining half (both methods work; topping-only is the most classic look).

8) Bake until bubbling and deeply melty

Bake for 25–35 minutes, until the edges are bubbling and the top is melted and lightly browned. If you want more color, broil for 1–2 minutes at the end—watch closely.

9) Rest before serving (important)

Let the tartiflette rest for 8–10 minutes. This helps it set so it scoops cleanly and doesn’t “run” all over the plate.

What to serve with tartiflette

A tartiflette is rich by design: potatoes, bacon, cheese. The best pairings add freshness, crunch, and acidity.

A crisp salad is the classic move—try Homemade Greek Salad (Easy Recipe) for bright bite and clean flavors: https://www.micheldumas.com/en/homemade-greek-salad-easy-recipe/
For a creamy-but-bright option, Homemade Ranch Dressing (Fresh and Easy) works beautifully on a simple romaine salad: https://www.micheldumas.com/en/homemade-ranch-dressing-fresh-and-easy/
If you want a lighter-feeling side that still satisfies, Greek Pasta Salad With Creamy Dressing can turn dinner into a full table spread: https://www.micheldumas.com/en/greek-pasta-salad-with-creamy-dressing/
For a cozy winter menu, pair tartiflette with a different “bowl meal” on another night like Chili Con Carne With Beef and Beans: https://www.micheldumas.com/en/chili-con-carne-with-beef-and-beans/

Substitutions (Reblochon, bacon, wine, potatoes)

Reblochon substitutes (Canada/USA-friendly):

Raclette cheese (very melty, alpine vibe)
Brie + a small handful of shredded Swiss (Brie for creaminess, Swiss for nuttiness)
Camembert (stronger flavor, great melt)
If you love melty cheese snacks, Fried Brie (Breaded Cheese) uses that same “gooey center” principle: https://www.micheldumas.com/en/fried-brie-fromage-breaded-cheese/

Bacon / pork:

Pancetta (less smoky, more cured-meat flavor)
Smoked ham (leaner; add a bit of butter or oil since ham won’t render much fat)
If you want a totally different pork comfort dish, Perfect Pork Rack Roast With Pan Jus is another cold-weather favorite: https://www.micheldumas.com/en/perfect-pork-rack-roast-with-pan-jus-and-roasted-vegetables-juicy-bistro-style-recipe/

White wine:

Dry vermouth (use less)
Chicken stock (if you prefer no alcohol; you’ll lose some acidity)
For a classic French “wine depth” dinner, Classic Boeuf Bourguignon is the full-on red wine route: https://www.micheldumas.com/en/classic-boeuf-bourguignon/

Potatoes:

Yukon Gold (best all-around)
Red potatoes (hold shape well)
Fingerlings (very nice texture)
If you want a pure potato side recipe, Homemade Mashed Potatoes (Recipe) is the smooth-and-creamy lane: https://www.micheldumas.com/en/homemade-mashed-potatoes-recipe/

Optional cream:

Heavy cream is ideal
Half-and-half works (slightly thinner)
If you want another comfort recipe that leans creamy, not cheesy, Creamy Tuscan Chicken is a different “creamy dinner” cluster: https://www.micheldumas.com/en/creamy-tuscan-chicken/

FAQ

Is tartiflette supposed to be salty?
It’s naturally seasoned by the bacon and cheese. That’s why black pepper is usually the main seasoning. Salt is often unnecessary.

Can I make tartiflette without wine?
Yes. Swap with a splash of chicken stock. You’ll lose a bit of brightness, so serve with a tangy salad.

Do I have to peel the potatoes?
No. Peeled is more classic; unpeeled is more rustic. Either works if you cut evenly and parboil correctly.

Why are my potatoes still firm after baking?
They were under-parboiled or the chunks were too large. Parboil until a knife slips in easily but the pieces still hold shape.

Why is my tartiflette greasy?
Too much bacon fat was left in the pan. Spoon off extra fat after browning the bacon—leave enough to cook onions, but not a pool.

Can I prep it ahead for guests?
Yes. Parboil potatoes, cook bacon/onions, assemble, and refrigerate. Bake just before serving, adding a few extra minutes since it starts cold.

How do I reheat leftovers without drying them out?
Cover with foil and reheat at 325°F until hot. A small splash of cream or milk around the edges helps.