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Classic Tartiflette Recipe | Creamy French Potato Dish with Mushrooms - Cozy, Cheesy Comfort

Tartiflette is the kind of meal that makes a cold evening feel warm. It’s creamy, bubbling, and deeply satisfying, with layers of potatoes, bacon, onions, and earthy mushrooms bound together by rich Reblochon cheese. You don’t need to be a chef to make it—just a few simple steps and good, honest ingredients.
Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Servings 6 servings

Ingredients
  

  • 2 pounds (900 g) waxy potatoes (Yukon Gold or similar), peeled
  • 8 ounces (225 g) smoked bacon lardons or thick-cut bacon, sliced
  • 1 large yellow onion, thinly sliced
  • 10 ounces (280 g) cremini or button mushrooms, sliced
  • 2 cloves garlic, finely minced
  • ½ cup (120 ml) dry white wine (Savoie, Chardonnay, or Pinot Grigio)
  • ¾ cup (180 ml) heavy cream
  • 1 whole Reblochon cheese (about 14–16 oz / 400–450 g), halved horizontally
  • 2 tablespoons unsalted butter
  • 1 tablespoon olive oil
  • Fresh thyme leaves (optional), about 1 teaspoon
  • Salt and freshly ground black pepper

Instructions
 

  • Parcook the potatoes: Cut the potatoes into 1/4-inch (6 mm) slices. Place in a pot of cold salted water, bring to a gentle boil, and cook for 8–10 minutes until just tender but not falling apart. Drain and let steam-dry.
  • Brown the bacon: Heat a large skillet over medium heat. Add the bacon and cook until golden and crisp at the edges, 6–8 minutes. Transfer to a plate, leaving some fat in the pan.
  • Cook the onions: Add 1 tablespoon butter to the pan if needed. Add the onions and a pinch of salt. Cook over medium heat, stirring occasionally, until soft and lightly caramelized, about 10 minutes.
  • Sauté the mushrooms: Push onions to the side and add the olive oil plus mushrooms. Cook without stirring for 2–3 minutes to brown, then stir and continue cooking until they release moisture and it evaporates. Season with salt, pepper, and thyme if using.
  • Add garlic and deglaze: Stir in the garlic for 30 seconds. Pour in the white wine, scraping up browned bits. Simmer until almost all the liquid has reduced, 2–3 minutes. Return the bacon to the pan and mix.
  • Preheat and prep dish: Heat the oven to 375°F (190°C). Butter a medium baking dish (about 9x9 inches or similar).
  • Layer everything: Lay half the potatoes in the dish. Season lightly with salt and pepper. Spoon over half the bacon-onion-mushroom mixture. Repeat with remaining potatoes and mixture.
  • Add cream: Pour the heavy cream evenly over the layers. It should settle into the gaps without drowning the dish.
  • Top with Reblochon: Slice the Reblochon horizontally through the middle to make two thinner wheels. Place them rind-side up on top of the potatoes, covering as much surface as possible. Cut into chunks if needed to fit.
  • Bake: Bake for 20–25 minutes until the cheese is melted and bubbling. Switch to broil for 1–3 minutes to brown the top lightly, if you like.
  • Rest and serve: Let the tartiflette rest 10 minutes so it sets slightly. Serve warm with a simple green salad and sharp vinaigrette.