Air Fryer Reference
Crispy Leeks
veggie · fresh
- Temperature
- 380 °F
- 193 °C
- Total time
- 12 min
- 4 medium leeks (about 1.5 lb total before trimming
- Flip at
- 6 min
- flip once
- Internal temp
- —
- use visual cue
Doneness
Cut faces are deep golden brown with caramelised mahogany at the outer edges; the white-and-pale-green shaft has gone soft and yielding — a paring knife slides through any layer with no resistance and the centre tastes sweet, mellow and slightly silky rather than raw-onion sharp. Outer layers should be crisp-edged but not blackened; if any wedge is fully black at the tips, pull the basket immediately and trim the burnt edge before serving.
Oil & seasoning
Brush 1 tablespoon olive oil onto the cut face of each half — the oil carries the heat into the layered shaft and caramelises the cut face while the outer skin crisps. Leeks have almost no surface fat of their own, so a bare leek goes papery-dry instead of golden-tender; the oil is what converts the cut face from raw-pungent to mellow-sweet.
Season with: coarse sea salt, freshly cracked black pepper, fresh thyme leaves, lemon zest, grated parmesan after cooking, Dijon vinaigrette drizzled over the warm leeks, chopped fresh chives or parsley to finish.
Watch out for
- Rinse the layers thoroughly before cooking. Leeks grow in sandy soil and grit lodges between every concentric layer; an unrinsed leek delivers a mouthful of grit no matter how golden the outside looks. Halve lengthwise FIRST, then fan the layers under cold running water and shake dry — don't try to rinse a whole leek, the sand doesn't come out.
- Keep the root intact when you trim. The root holds the layered shaft together; cut it off and the leek falls apart into a pile of loose rings that scatter in the airstream and burn unevenly. Trim only the dry root hairs, leaving the disc of root attached.
- Discard the tough dark-green tops or save them for stock — don't try to cook them. The dark-green leaves above the pale-green section are fibrous and stay tough no matter how long you cook them, and they burn to bitter-black at 380 °F in under 3 minutes. The white and pale-green shaft is the only part that crisps tender.
- Watch the last 2 minutes carefully. The outer layer goes from golden to charred in under 90 seconds at 380 °F as the moisture finishes evaporating. If the tips are darkening past mahogany toward black, pull the basket immediately — burnt leek edges taste like burnt onion and ruin the dish.