Soak the beans

• Place the dried lima beans in a bowl and cover generously with water.
• Leave to soak overnight, then drain.

Boil the beans

• Cover the soaked beans with fresh water in a stockpot.
• Boil until slightly soft but still holding together, then drain well.

Coat the beans

• Pat the drained beans dry.
• Toss with the oil, grated Parmesan, garlic powder, salt and pepper until evenly coated.

Air fry until crispy

• Preheat the air fryer to 190 °C (375 °F).
• Spread the beans in a single layer and air fry, shaking the basket halfway, until crispy.

Serve

• Serve warm, with homemade ranch for dipping if you like.