Air Fryer Roast Potatoes: Crispy Roasties in 30 Minutes
Crispy air fryer roast potatoes: parboil floury spuds, rough them up and cook at 200°C for 25–30 min with just 1–2 tbsp oil. Full method and timings.
Peel and cut floury potatoes such as Maris Piper into 4–5 cm chunks, parboil for 8–10 minutes, drain and shake to rough up the edges, toss in 1–2 tablespoons of oil, then air fry at 200°C for 25–30 minutes, shaking every 10 minutes, until deep golden and crisp. Skipping the parboil works too: cook raw chunks at 190°C for 30–35 minutes, but they won't be quite as fluffy.
Roast potatoes are often the part of a Sunday dinner everyone fights over. The air fryer makes excellent ones with less oil than a roasting tin, and it frees up the oven for the meat and Yorkshire puddings.
The method follows the classic British approach — parboil, rough up, roast hot — just scaled to a smaller space.
Choose a floury potato
Floury potatoes such as Maris Piper, King Edward and many bags labelled 'roasting' or 'all-rounder' break down slightly at the edges when boiled. That fluffy outer layer is what turns into a crunchy crust.
Waxy potatoes, like salad potatoes and Charlotte, hold their shape too well. They roast nicely but stay smooth rather than crunchy.
Why parboil?
Boiling the potatoes for a few minutes first cooks them part-way and softens the outside. When you shake them in the colander, the surface roughs up into a starchy, uneven coating. In hot air, all those ridges catch and crisp.
Parboiling also means the centre is already partly cooked, so the outside doesn't have to wait — and burn — while the middle softens.
Tip: After draining, let the potatoes steam dry in the colander for 2–3 minutes. Drier potatoes crisp faster and absorb oil more evenly.
Oil: how much and which
You need far less than in a roasting tin. One to two tablespoons for 800 g–1 kg of potatoes is plenty. Toss them in a bowl so every surface is coated, rather than drizzling in the basket.
Vegetable, sunflower or rapeseed oil all work well at 200°C. Goose or duck fat gives a traditional flavour; melt a tablespoon and toss as you would oil.
Timings and batches
Keep potatoes in a single layer, or two shallow layers at most, and shake every 10 minutes. A typical single basket holds roast potatoes for two to four people; for more, cook in batches and keep the first lot warm in a low oven.
- Parboiled, 4–5 cm chunks: 25–30 minutes at 200°C
- Raw (not parboiled), 4 cm chunks: 30–35 minutes at 190°C, then 3–5 minutes at 200°C
- Baby or new potatoes, halved: 18–22 minutes at 200°C
- Frozen roast potatoes: 20–25 minutes at 200°C
Flavour variations
Once you've got the basics right, try:
- Rosemary and garlic: add a sprig of rosemary and a few bashed garlic cloves for the last 10 minutes
- Semolina crunch: dust the drained potatoes with a tablespoon of semolina before oiling
- Paprika: sprinkle with smoked paprika and salt
- Parmesan: toss with a little grated parmesan for the final 3 minutes
Making ahead
You can parboil and rough up the potatoes the day before, cool them quickly and keep them covered in the fridge. Toss in oil and air fry when ready, adding a few minutes to the cooking time.
Leftover roast potatoes reheat well at 190°C for 6–8 minutes. Make sure they were refrigerated within two hours of cooking and eat within two days.
Recipe card
Ingredients
- 900 g floury potatoes, such as Maris Piper
- 1½ tbsp vegetable or rapeseed oil (or melted goose fat)
- 1 tsp salt, plus extra for the cooking water
- Optional: 1 sprig rosemary and 2 garlic cloves
Method
- Peel the potatoes and cut into 4–5 cm chunks.
- Put in a pan of cold salted water, bring to the boil and simmer for 8–10 minutes until the edges are just soft.
- Drain, leave to steam dry for 2–3 minutes, then shake the colander to rough up the edges.
- Preheat the air fryer to 200°C.
- Toss the potatoes in the oil and salt in a bowl.
- Air fry in a single layer for 25–30 minutes, shaking every 10 minutes, adding rosemary and garlic for the last 10 minutes if using.
- Serve straight away while crisp.
Frequently asked questions
Can I make roast potatoes in an air fryer without parboiling?
Yes. Cook raw chunks at 190°C for 30–35 minutes, then turn up to 200°C for a few minutes. They'll be crisp but less fluffy than parboiled ones.
Why aren't my air fryer roast potatoes crispy?
Usually too many in the basket, potatoes still wet after boiling, or not enough oil coating. Cook fewer at a time and dry them well.
Can I cook roast potatoes and parsnips together?
Yes. Add parsnips cut into similar-sized pieces for the last 15–20 minutes, as they cook faster than potatoes.
Do I need to peel the potatoes?
No. Skin-on roasties are crunchy and save time; just scrub them well.
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General information only. Check product labels and manufacturer instructions before you start.
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