Cut each brioche slice into 9 little squares.

In a shallow bowl, whisk the eggs until lightly beaten. Add the milk, vanilla, ¼ teaspoon of the cinnamon, and a pinch of salt, then whisk until everything’s smooth.

Preheat your air fryer to 350°F and generously spray the basket with cooking oil.

Dip each bread square into the egg mixture for about 5 seconds per side. Only dip as many as will fit in the basket without crowding.

Arrange the coated pieces in a single layer and air fry for 5–8 minutes, or until golden and crisp.

While they cook, stir together the remaining cinnamon and the granulated sugar in a small bowl.

As soon as the French toast bites come out, toss them in the cinnamon-sugar mixture so it sticks beautifully.

Repeat with the remaining bread squares.

Serve warm with powdered sugar, maple syrup, or fresh fruit — or all three.