How long to cook leeks: 8–10 min pan-fried, 5–7 min boiled, 5–7 min steamed and 25–30 min in the oven at 200°C (180°C fan). Every way to cook it is below, with the temperature and how to tell it’s done.
How long to cook leeks
Times are for 3 medium leeks (about 500 g), for 4.
Trim the root and the dark green tops, slice, then wash well in a bowl of water: grit hides between the layers.
How to tell it’s done
Soft and silky; sliced leeks should collapse without browning much.
Questions
How long to pan-fry leeks?
Sliced: 8–10 min over a low heat. Sweat sliced leeks in butter with a lid on, stirring now and then.
How long to boil leeks?
Sliced: 5–7 min simmering in salted water. Drain very well.
How long to steam leeks?
Sliced: 5–7 min over simmering water.
How long to cook leeks in the oven?
Halved: 25–30 min at 200°C (180°C fan), 400°F, gas 6. Halve lengthways, brush with oil and roast cut side up.
How long to microwave leeks?
Sliced: 4–5 min on full power, covered. With a knob of butter and a splash of water.
How long to braise leeks?
Halved: 20–25 min covered, simmering in a little stock. Halved or in thick lengths.
Times are a guide for typical home portions: ovens, air fryers, microwaves and the size of what you’re cooking all vary. Check meat, poultry and fish with a thermometer before serving. Safe temperatures follow USDA and UK Food Standards Agency guidance, last checked 11 November 2026.