Preheat your air fryer to 190°C (375°F).

Slice the tops off the garlic bulbs, drizzle olive oil, sprinkle with salt and pepper, wrap in foil, and roast in the air fryer for 30-35 minutes.

Squeeze the cooled garlic cloves into a bowl, combine with unsalted butter, grated Parmesan, parsley, and black pepper. Mix until creamy.

Slice the baguette or ciabatta in half lengthwise, spread the garlic butter mixture evenly on both halves.

Sprinkle shredded mozzarella over each buttered half.

Place the bread halves in the air fryer and cook at 180°C (360°F) for 5-8 minutes until cheese is melted and edges are golden brown.

Let cool slightly before slicing and serving.