Melt 4 pieces of butter in a microwave-safe bowl, then mix with 1 tbsp sugar and a pinch of salt.

Brush the butter mixture evenly on both sides of the bread slices using a brush.

Place the bread slices in the air fryer and cook at 180°C for 5 minutes.

Flip the bread slices and cook for another 5 minutes at the same temperature.

Cut the toasted bread into strips using scissors.

Place the bread strips in a plastic bag with sugar and shake to coat evenly.