These homemade mozzarella sticks made in the Ninja Air Fryer are a crowd-pleasing appetizer that is sure to impress. The air fryer ensures that the mozzarella sticks are perfectly crispy on the outside and gooey on the inside. Simply coat the mozzarella sticks in breadcrumbs, place them in the air fryer, and let it work its magic. In just a few minutes, you'll have golden-brown and cheesy mozzarella sticks that are perfect for dipping in marinara sauce.