Turn the oven on to 200 °C from the start, it'll be hot when you need it.
Peel and cut
Peel the 280 g of potatoes and cut them into 5 mm slices. Peel the 2 onions and slice them thinly.
Brown the potatoes
Heat the olive oil in the skillet over medium heat and add the potatoes. Sauté them, flipping now and then, until golden and tender when poked with the tip of a knife.
Tip · Don't cover or crowd the skillet. Spread the slices in a thin layer, otherwise they'll steam instead of browning.
Add the onions and bacon
Add the onions and the 70 g of smoked diced bacon to the skillet. Keep going over medium heat, stirring, until the onions are soft and the bacon is golden.
Season and bind
Turn off the heat, add the 4 cl of crème fraîche, some pepper and very little salt since the bacon and reblochon are already salty. Stir well.
Prep the reblochon
Cut the reblochon in half horizontally, then cut each half into big chunks.
Build the gratin
Pour half the mix into the dish, add half the reblochon, then the rest of the mix and finally the rest of the reblochon, rind side up.
Bake the gratin
Bake at 200 °C until the cheese is melted and nicely golden. Let it rest for 2 minutes before serving.
Tip · If the top browns too fast before the cheese melts, lower the oven to 180 °C. Serve with a green salad.
And there you go, it's readyCheck off every step to celebrate.
The questions you're asking
short answers, numbers you can check
How many calories in a serving?
One serving has about 1006 kcal. 12% comes from carbs, 20% from protein and 67% from fat.
29 gCarbs
51 gProtein
75 gFat
Per serving (the dish for 2, divided by 2)
Energy
1006 kcal
Protein
50.9 g
Carbs
29.3 g
of which sugars
6.3 g
Fat
74.9 g
of which saturated fat
45.9 g
Fiber
5.2 g
Salt
3.8 g
Worked out ingredient by ingredient with the ANSES Ciqual 2025 table, never written by an AI. It's an estimate: veggie sizes and brands make the numbers vary.
How much does it cost?
About $2.87 a serving, adding up the average prices of the ingredients you need to buy.
≈ $5.74for 2 people
≈ $2.87a serving
Pantry salt, oil and spices aren't counted. Your store and your brands will move the total, but the ballpark is right.
How long does it keep?
2 days in the fridge, in a closed container, once cooled within two hours. After that, into the freezer it goes.
2 daysin the fridge
Yesin the freezer, thaw it in the fridge the day before