In a mixing bowl, whisk together the eggs, milk, vanilla extract, 1 teaspoon of cinnamon, and salt until well combined.
Cut each slice of bread into 3 equal sticks.
Dip each bread stick into the egg mixture, ensuring they are well coated but not soaked. Allow excess mixture to drip off.
In a separate shallow dish, combine the granulated sugar and 1 tablespoon of cinnamon.
Roll each coated bread stick in the cinnamon sugar mixture until fully covered.
Preheat the air fryer to 375°F. Lightly spray the air fryer basket with cooking spray or brush with oil.
Place the coated French toast sticks in a single layer in the air fryer basket, making sure they are not overcrowded. You may need to work in batches.
Cook for 8-10 minutes, flipping halfway through, until golden brown and crispy.
Remove from the air fryer and serve warm with maple syrup or your favorite dipping sauce.