Cut each bread slice into three sticks.

Whisk the eggs, milk, vanilla, cinnamon, and sugar in a shallow bowl.

Dip each stick into the mixture, turning to coat both sides without soaking it.

Heat a sprayed skillet over medium heat. Cook the sticks for 2 to 3 minutes per side, until golden.

Cool completely. Place the sticks on a baking sheet and freeze for 1 hour.

Transfer them to a freezer bag. Reheat in a toaster oven or air fryer until warm.