Peel the potatoes and zucchini. Cut them into thin rounds, 3 to 4 mm thick.
Cook the potatoes
Drop the potato slices into a saucepan of salted boiling water. Cook for 10 min over medium heat. Drain and set aside.
Tip · To check if the potatoes are done, poke them with a fork: it should slide in easily.
Sauté the zucchini
In a nonstick skillet with the olive oil, sauté the zucchini rounds over medium heat for 5 min. Season lightly with salt and pepper. Set aside.
Make the cream
In a bowl, mix the crème fraîche with the milk, nutmeg, salt and pepper. Taste and adjust the seasoning.
Assemble the gratin
In the baking dish, alternate a layer of potatoes and a layer of zucchini, adding a bit of the cream mixture each time. Repeat until you've used everything up. Finish with a layer of cream.
Tip · For a crispier gratin, slide it under the broiler for 2 to 3 min at the end.
Add the cheese
Scatter the shredded cheese evenly over the top of the gratin. Keep half for the end.
Bake
Bake the gratin at 180°C for 25 min. Halfway through, add the rest of the shredded cheese on top.
Serve hot
Take the gratin out of the oven and let it rest for 2 min before serving.
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 455 kcal. 25% comes from carbs, 13% from protein and 59% from fat.
29 gCarbs
15 gProtein
30 gFat
Per serving (the dish for 2, divided by 2)
Energy
455 kcal
Protein
14.9 g
Carbs
28.9 g
of which sugars
5.7 g
Fat
29.7 g
of which saturated fat
16.2 g
Fiber
5.6 g
Salt
0.5 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 $2.07 a serving, adding up the average prices of the ingredients you need to buy.
≈ $4.15for 2 people
≈ $2.07a 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. And it freezes really well.
2 daysin the fridge
Very wellin the freezer, thaw it in the fridge the day before