Turn the oven on to 200 °C, convection if you have it.
Cook the potatoes
Peel the 400 g of potatoes, cut them into 2 cm cubes and drop them into a saucepan of cold salted water. Bring to a boil, then let them simmer until a knife slides in easily.
Tip · Don't let the potatoes cook too long, they need to stay firm or they'll get mushy when you mix and bake them.
Slice the onion
Peel the onion and cut it into thin slices on the cutting board.
Sauté the onion and bacon
Heat 0.5 tbsp of olive oil in the skillet over medium heat, add the onion and let it brown for 5 min. Add the 75 g of smoked diced bacon and keep going for 4 min until golden.
Drain the potatoes
Drain the potatoes in the colander and let the steam escape for a few moments.
Mix the base
In the skillet, mix the potatoes with the onion, bacon and the 50 g of crème fraîche. Add pepper, and taste before salting since the bacon and reblochon are already salty.
Prep the reblochon
Cut the reblochon (300 g) in half horizontally to get two rounds. Keep the rind on.
Build the gratin
Pour the mix into the baking dish. Set both reblochon halves on top, rind side up.
Tip · Set the reblochon rind side up so it browns and protects the cheese, which then melts into the dish. Serve with a green salad and a squeeze of lemon or a splash of vinegar if you have some.
Bake until golden
Bake at 200 °C until the cheese is melted and nicely golden.
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 865 kcal. 17% comes from carbs, 19% from protein and 62% from fat.
36 gCarbs
42 gProtein
60 gFat
Per serving (the dish for 2, divided by 2)
Energy
865 kcal
Protein
41.9 g
Carbs
36 g
of which sugars
4.4 g
Fat
60 g
of which saturated fat
37 g
Fiber
5.8 g
Salt
3.1 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 $1.83 a serving, adding up the average prices of the ingredients you need to buy.
≈ $3.65for 2 people
≈ $1.83a 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