Pommes de terre au fourRustic baked potatoes
Starchy spuds, oiled and salted before they go in, baked until the centers read 96 °C — then split and finished with brown butter, crème fraîche, and chives. Crisply salted skin, fluffy inside, no paper bag required.
Technique notes
The difference between a proper baked potato and a boiled potato in a jacket is temperature and time. A home oven runs at 180–200 °C — below the Maillard window but above the point where the interior starch sets into a paste. The oil you brush on before baking does what the fat does in a fry: it transfers heat to the skin and carries the salt into it. The pan heat article explains the browning scale this sits below, and sauces 101 explains why the brown-butter and crème fraîche finish is what actually makes the dish.
Equipment
- Baking tray
- Sharp small knife or fork
- Instant-read thermometer, or a sharp knife to test the center
- Small saucepan for the brown butter
Ingredients
- 2 large starchy potatoes (Russet or King Edward), 250–350 g each — the starchier the skin, the crispier it gets
- 15 ml (1 tbsp) vegetable oil, divided
- 4 g (¾ tsp) fine sea salt, divided
- 30 g (2 tbsp) butter, for the brown butter
- 30 ml (2 tbsp) crème fraîche
- 10 g chives, cut on the diagonal
- 1 pinch of flaky salt, to finish
Method
- Wash the potatoes and dry them well. Pierce each one all the way through in four or five places — the steam has to have somewhere to go, or the skins will split at random and dump the interior out onto the tray.
- Brush 8 ml (just over ½ tbsp) of the oil over the whole surface and rub 3 g of the salt into it with your fingertips, working it into the creases. Doing this before the bake is the step that makes the skin crisp — the oil transfers heat to the surface and the salt draws moisture out as the potato bakes.
- Heat the oven to 200 °C and put the potatoes on the tray in the middle of the oven. Bake for 50–60 minutes, flipping them once halfway through so the oil doesn't pool on one side.
- They're done when the center reads 96–98 °C, or when a knife or fork slides in to the core with almost no resistance and then drags out leaving a soft trail of interior. Don't go past 98 °C: above that the starch sets into a glue and the interior goes rubbery no matter what you add on top.
- Rest them on the tray for 5 minutes while you make the brown butter: melt the butter over medium heat without stirring, then once it's foaming and the solids start to sink, take it off the fire — it's done at the smell of toasted hazelnut, and it goes from "brown" to "burnt" in the time it takes to read this sentence.
- Split each potato open with the sharp knife, press the ends together to fluff the interior, and spoon over a good spoonful of the brown butter and the crème fraîche.
- Finish with the chives, the remaining salt, and a shake of the flaky salt on top. Eat straight from the tray or plate; the texture is best in the first five minutes.
Common failures
- Skin is soft and papery, not crisp. The potato went in dry — the oil-and-salt step is what carries the heat to the surface. If you skip it, you make a boiled potato with extra steps.
- Interior is dense and gluey. It went past 98 °C. Starch retrogrades above that; once the interior sets you can't un-set it, only cover for it.
- Skin splits and dumps the interior on the tray. Not pierced enough. Four or five deep punctures, all the way through, before it goes in.
- Brown butter burns before it smells nutty. The butter is already at the edge of the browning window when it starts foaming; the move from "golden" to "bitter" is a few seconds, so the lid stays on the fire the moment the solids sink.
Variations & substitutions
- With cheese — replace the brown butter with 60 g of grated aged cheddar or gruyère over the open potato, and a quick 3 minutes under the broiler to set it. The brown-butter version is the one that shows the technique; the cheese one is the one that gets eaten.
- With bacon — 80 g of bacon, pan-fried crisp in the frying style, crumbled over the top at the last.
- Baking powder, small dose — add 1 g (a pinch) of baking powder to the salt-and-oil rub and the skin goes noticeably puffier, at the cost of a faint soapy edge if you're heavy-handed.
- No crème fraîche — 30 ml of thick yogurt or sour cream works, just stir it through the brown butter off the heat so the acid doesn't split it.
What to serve with it
A big green salad with a sharp dressing — the potato is already rich, so the salad's only job is acid. A thin tomato slice on top of the potato, with its juice running into the butter, is a legitimate upgrade. If it's dinner and not lunch, the brown-butter pan liquid is worth spooning over rice or a simple steamed vegetable the same way the lemon goes over the sample chicken.
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