Potatoes & Other Staples · Mediterranean home cooking
Oven-Roasted Potatoes
Parboiled potato chunks roughed up at the edges, then roasted in hot oil with rosemary, garlic and lemon until the outsides turn deeply golden and audibly crisp.
About this dish
The rough edges are the whole trick. Parboiling softens the outer layer of starch; shaking the drained potatoes in the pot scuffs that layer into a fuzzy paste which, once it meets hot oil, fries into a craggy, glassy shell. Start the fat in the oven so the potatoes sizzle the second they land, and turn them only once or twice. The tray should smell of rosemary and browned butter, and a fork should meet a faint crack before sinking into a fluffy centre.
Before you start
Equipment: Oven. Tap the ingredient checkboxes as you go.
Method
7 steps · tick each one off as you finish it.
Preheat the tray
Heat the oven to 220 °C with a roasting tray and 60 ml olive oil inside for 15 minutes. The oil should shimmer and ripple slightly when you pull the tray out; it must be hot enough to sizzle on contact.
Parboil
Cover 1000 g peeled potato chunks with 2000 ml cold water and 1 tbsp salt, bring to a boil, then simmer 8 minutes. The edges should be tender enough to scuff while the centres still feel firm when pierced.
Drain and rough up
Drain the potatoes thoroughly and return them to the hot pot. Shake the pot firmly for 10 seconds so the surfaces turn fluffy and scuffed with a pale starchy paste; this rough layer is exactly what will crisp in the oven.
Into the hot oil
Tip the potatoes carefully into the hot tray; they should sizzle loudly at once. Turn once to coat, then scatter over 15 g crushed garlic, 2 tbsp rosemary, 1 tbsp lemon zest and 1 tsp coarse salt.
Roast
Roast at 220 °C for 40 to 45 minutes, turning once at the 25 minute mark. They are done when deeply golden, crisp at the edges, and a fork meets a faint crack before sinking into a fluffy, dry centre.
Check the crumb
Cut one potato open: the inside should be dry, fluffy and pale, with no waxy translucence. If the shells still look pale rather than deep gold, give the tray 5 minutes more at 220 °C and check again.
Serve
Rest the potatoes on the tray for 3 minutes so the shells firm up, then pile them into a warm dish. Serve hot, while the rosemary still smells sharp and the crisp edges have not yet softened in the steam.
Tips that matter
- Shake the drained potatoes hard enough to scuff them; a smooth surface will never crisp, however long it roasts.
- Use an oil with a high smoke point and get it properly hot before the potatoes go in.
Easy variations
- Swap the rosemary for 1 tbsp chopped thyme and add 1 tsp smoked paprika with the salt.
- Toss the hot potatoes with 30 g grated parmesan and 1 tbsp lemon zest just before serving.
Questions that come up
Why did my potatoes stick to the tray?
The tray and oil were not hot enough at the start, or you turned them too early. Let a crust form before the first turn.
Can I parboil them ahead?
Yes, boil, drain and rough them up, then chill uncovered up to a day; roast straight from cold with 5 extra minutes.
Nutrition, roughly
| Energy | 230 kcal |
|---|---|
| Protein | 4 g |
| Carbohydrate | 32 g |
| Fat | 10 g |
Estimated per serving from standard ingredients, rounded. Treat it as a guide, not clinical data.
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