To Freeze: Bake the french toast sticks as directed and coat in cinnamon sugar. Arrange the french toast sticks in a single layer on a parchment lined baking sheet and freeze 1-2 hours, until firm. Transfer the french toast sticks to a freezer safe container and freeze for 3-4 months. To warm, microwave for 1 minute, flip and microwave 1 minute more. Times will vary depending on your microwave.