Soak cashews, ginger, garlic, and cardamom in ¼ cup of hot water for 10 minutes. Blend to a smooth paste.
For blanching broccoli, boil salted water in a saucepan. Add broccoli florets. Cook for 2 minutes. Transfer them to a colander. Drain all the water. And then, immediately transfer them to a bowl full of ice-cold water. Once again, drain all the water and transfer the broccoli to a colander. Allow it to sit for 15 – 20 minutes to drain all the excess liquid.
Prepare marinade by combining cashew paste, yogurt, salt, spices, seasoning, coriander leaves, cornstarch (if adding), and cheese. Whisk nicely. It should be thick and smooth with a spoon dropping consistency.
Add blanched broccoli florets and coat each piece with the marinade.
Preheat the air fryer to 200 degrees Celcius. Brush or spray the inner basket with oil. Arrange marinated broccoli in the inner basket. Do not overcrowd the basket. Spray oil over the marinated broccoli.
Air Fry at 200 degrees Celcius for 15 minutes, turning the malai broccoli halfway through the cooking time.
Serve malai broccoli with green chutney or a dip of your choice.
Notes
You can cook malai broccoli in a greased pan over the stovetop or grill it on a BBQ.