A whole jacket sweet potato cooks faster in the air fryer than the oven, with crisp skin and a soft, sweet middle — and you don't need foil. Here's how long it takes by size.
Key takeaways
Q: How long does a jacket sweet potato take in an air fryer?
A: Air fry a whole sweet potato at 200°C (400°F) for 35–45 minutes, depending on size, until soft right through.
Q: Do you wrap it in foil?
A: No — leaving it bare gives crispier skin. Just prick it and rub with a little oil and salt.
Times by size
| Size | Temp | Time |
|---|---|---|
| Small | 200°C / 400°F | 30–35 min |
| Medium | 200°C / 400°F | 35–45 min |
| Large | 200°C / 400°F | 45–55 min |
Method
- Prick all over and rub with oil and salt.
- Air fry at 200°C, turning once.
- Check it's soft with a knife through the middle.
- Split and fluff before topping.
Toppings
- Beans & cheese for a classic.
- Chilli or tuna for protein.
- Feta & chickpeas for a Mediterranean spin — see crispy chickpeas.
Frequently asked questions
How long does a jacket sweet potato take in an air fryer?
A medium one takes 35–45 minutes at 200°C, turning once. Small ones are quicker; large ones can take up to 55 minutes.
Do you need to wrap sweet potato in foil?
No — leaving it unwrapped gives crispier skin. Prick it and rub with a little oil and salt before cooking.
Is air fryer jacket sweet potato healthy?
Yes — it's high in fibre and vitamins, especially with the skin on, and needs only a little oil.