Air Fryer Large Flat Mushrooms (Portobello Recipe)

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Air Fryer Large Flat Mushrooms (Portobello Recipe)

My guide for how to perfectly cook Air Fryer Large Flat Mushrooms includes my tips for making sure the tasty portobellos are properly cooked through but beautifully juicy and not remotely dry or shrivelled! Perfect for serving with breakfasts, steak dinners, adding to burgers, or simply serving as a side dish.

5 from 2 votes

Prep Time: 4

Cook Time: 18

Total Time: 22

Servings

Author Chloe

Equipment

Air Fryer

Chopping Board - Plastic

Measuring Scales

Mixing Bowl - Extra Small

Silicone Pastry Brush

Measuring Spoons

Silicone Tongs

Ingredients

4 Large Flat Mushrooms (Portobello) - circa 75g/2½oz each
30 g Salted Butter
¼ tsp Sea Salt Flakes

Instructions

If your air fryer requires pre-heating, start this setting now.
Prepare 4 Large Flat Mushrooms by brushing away any dirt (don't wash them) and make sure they are thoroughly dry.
Melt 30g Salted Butter in a small bowl in the microwave or in a pan on the stove. You can alternatively do this in a small heatproof bowl in the air fryer.
Brush the butter onto the tops of the mushrooms - be fairly generous.
Brush the remaining butter onto the underside of the mushrooms - make sure to use all the butter.
Season the tops of the mushrooms with roughly half of the ¼ tsp Sea Salt Flakes.
Use tongs to place the mushrooms bottom side up in the air fryer basket.
Season again with the remaining salt.
Cook for 6 minutes at 200c/390f.
Turn the mushrooms right side up and cook for a further 12 minutes at 180c/350f.
Check the mushrooms are as soft/brown as you like them and cook for longer if you prefer.
Serve!

Notes

This recipe is tested in a Cosori Lite (‎CAF-LI401S) with a 3.8 litre capacity. The square(ish) shaped basket is 21cm x 21cm and 24cm on the diagonal.
Not all models advise preheating is required. Please follow the recommended instructions for your model. Mine has a specific preheat setting which is 4 minutes at 205c.
For this recipe, I can comfortably cook 4 very large mushrooms in the basket at one time.
As all air fryer models are a little different, you may find that you can fit more or less in at a time. Some models include stacking shelves which will increase capacity.
Required cooking times and temperatures can also vary between models and brands. If you know that your air fryer runs a little hotter than most recipes suggest, use a lower temperature. And vice versa. Equally if you find that food cooks more quickly in your machine than instructions usually state, reduce the cooking time (or check it earlier) and vice versa.

Nutrition (Approx)