Yes you can, but note that it is easy to overcook these in the air fryer. Start with 3 minutes, and toss the basket to "stir" the croutons. Continue air-frying in short 2 minute intervals, making sure to check on them regularly as timing varies by manufacturer. If you have an Omni Air Fryer from Instant, you can use the bake function instead of airfrying and bake them for 14 to 16 minutes