Mushrooms cooking times
How long to cook mushrooms: 5–7 min pan-fried, 15–20 min in the oven at 200°C (180°C fan), 7–10 min in an air fryer at 200°C and 6–8 min under the grill. Every way to cook it is below, with the temperature and how to tell it’s done.
How long to cook mushrooms
Times are for 250 g, for 2–4.
| Method | Time | Heat | How |
|---|---|---|---|
| Pan-fry Sliced | 5–7 min | over a high heat | Fry in a hot pan with oil in one layer; add butter and garlic at the end. Salt at the end, or they go watery. |
| Oven Quartered | 15–20 min | 200°C (180°C fan), 400°F, gas 6 | Toss in oil. |
| Oven Large flat, whole | 20–25 min | 200°C (180°C fan), 400°F, gas 6 | Gill side up, with butter, garlic or a stuffing. |
| Air fryer Quartered | 7–10 min | 200°C (400°F) | Halved or quartered, tossed in a teaspoon of oil; shake halfway. |
| Grill Large flat, whole | 6–8 min | under a hot grill | Brushed with oil or butter, gill side up; turn once. |
| Barbecue Portobello, whole | 6–8 min | over medium direct heat | Brush with oil; start gill side down, then turn. |
| Deep-fry Whole button, coated | 2–3 min | oil at 180°C (350°F) | Coated in batter or breadcrumbs. |
Before you start
Wipe or brush off any dirt rather than washing. Slice or quarter; large flat or portobello mushrooms stay whole.
How to tell it’s done
Golden and glossy, with the liquid they release cooked away.
Questions
How long to pan-fry mushrooms?
Sliced: 5–7 min over a high heat. Fry in a hot pan with oil in one layer; add butter and garlic at the end. Salt at the end, or they go watery.
How long to cook mushrooms in the oven?
Quartered: 15–20 min at 200°C (180°C fan), 400°F, gas 6. Toss in oil. Large flat, whole: 20–25 min at 200°C (180°C fan), 400°F, gas 6. Gill side up, with butter, garlic or a stuffing.
How long to cook mushrooms in an air fryer?
Quartered: 7–10 min at 200°C (400°F). Halved or quartered, tossed in a teaspoon of oil; shake halfway.
How long to grill mushrooms?
Large flat, whole: 6–8 min under a hot grill. Brushed with oil or butter, gill side up; turn once.
How long to barbecue mushrooms?
Portobello, whole: 6–8 min over medium direct heat. Brush with oil; start gill side down, then turn.
How long to deep-fry mushrooms?
Whole button, coated: 2–3 min in oil at 180°C (350°F). Coated in batter or breadcrumbs.
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.