Ingredients

Equipment Needed

• •Ovenproof gratin dish, approximately 25cm by 35cm
• •Mandoline or sharp knife
• •Aluminium foil

Instructions

1. 1

   Prepare the dish

   Heat the oven to 180°C. Take the butter and rub it generously across the inside of a large ovenproof dish, about 25cm by 35cm or an oval gratin of similar size. Get into the corners and up the sides. The butter isn't just for preventing sticking. It browns where the cream meets the edges and gives you those dark, caramelized patches that everyone fights over at the table.

2. 2

   Slice the potatoes

   Peel the potatoes and slice them 2 to 3 millimetres thin. Consistency matters more than precision. If some slices are thicker than others, they'll cook unevenly and you'll have soft layers next to hard ones. A mandoline makes this fast and even. If you're using a knife, take your time and keep the thickness steady. Don't rinse the slices. You want the starch on the surface because it thickens the cream as it bakes and gives the dish its body.

   If you're slicing ahead of time, keep the potatoes submerged in cold water to prevent browning, then drain and pat them completely dry before layering. Wet potatoes dilute the cream.
3. 3

   Layer the potatoes

   Arrange the first layer of potato slices across the bottom of the buttered dish, overlapping each slice by about a third. Scatter a handful of sliced onion over the top. Season lightly with salt and a few turns of white pepper. Repeat: potatoes, onion, salt, pepper. Build four to five layers, pressing each one down gently with your palm before adding the next. The pressing removes air pockets and ensures the cream reaches every layer. Tuck the bay leaf into the middle layer, where it will release its fragrance slowly without sitting on the surface and scorching. Finish with a final layer of potatoes, neatly arranged, and no onion on top. The top layer is what browns, and onion burns before potato does.

   Season between every layer, not just on top. Salt can't travel downward through dense potato. Each layer needs its own.
4. 4

   Add the cream

   Pour the cream evenly over the layered potatoes. It should come about two-thirds of the way up the side of the dish. If you can see the top layer sitting above the cream, that's correct. Those exposed edges will catch the heat and turn golden while the submerged layers cook gently below. Grate the nutmeg directly over the surface, just a whisper of it. Nutmeg is not a main flavor here. It's the note underneath the cream that you can't quite name but would miss if it were gone.

   Take the cream out of the fridge thirty minutes before you need it. Room-temperature cream heats faster in the oven, which means more even cooking from the start.
5. 5

   Bake until golden

   Cover the dish tightly with aluminium foil and bake for forty-five minutes. The foil traps moisture and lets the potatoes steam from below, cooking them through before the top dries out. After forty-five minutes, remove the foil and continue baking for another twenty-five to thirty minutes, until the surface is deep golden and the cream is bubbling thickly at the edges. The bubbling tells you the starch and cream have thickened into a sauce. If it's still thin and watery, give it ten more minutes.

   Test with a thin knife pushed into the centre. It should slide through every layer with no resistance at all. If there's any firmness, cover again and give it another ten minutes.
6. 6

   Rest before serving

   Let the dish rest for ten minutes out of the oven before you bring it to the table. This is not optional. The cream is boiling when it comes out, and the layers are too soft to hold. Ten minutes lets everything settle and firm just enough that a serving spoon lifts a portion cleanly. Bring it to the table in the dish it was baked in. That's how it's done. Flødekartofler is not transferred to another plate. The browned edges and the bubbling cream are part of the presentation.

Chef Tips

• •Use waxy potatoes, not floury. Floury potatoes break down in the cream and you lose the layered structure. Waxy varieties hold their shape and give you clean, distinct layers that a spoon can lift without falling apart.
• •The cream should be heavy, 38% fat or higher. Low-fat cream splits in the oven and turns grainy. This is a dish that asks for richness, and the cream is doing the work of both sauce and seasoning. Use good cream and the dish needs almost nothing else.
• •Flødekartofler sits beside strong-flavored meats: roast pork, duck, goose. Keep the seasoning gentle. Salt, white pepper, a breath of nutmeg. The dish is a counterpoint, not a competition.
• •If you're making this for a crowd, it scales easily. Use a larger dish and add more cream until it reaches two-thirds of the way up. The baking time stays roughly the same as long as the depth of the layers doesn't change much.

Advance Preparation

• •You can assemble the dish up to six hours ahead: layer the potatoes and onion, pour over the cream, cover tightly, and refrigerate. Add fifteen minutes to the covered baking time if going straight from the fridge to the oven.
• •Flødekartofler reheats well. Cover with foil and warm at 160°C for twenty minutes. The top won't recrisp, but the layers stay creamy and tender. It keeps in the fridge for three days.

Frequently Asked Questions

Nutrition Information

1 serving (about 290g)