In a mug, add the Egg (1), Milk (1/2 cup), Granulated Sugar (1 1/2 tablespoon), Vanilla Extract (1/4 teaspoon), and Ground Cinnamon (1/4 teaspoon).
With a fork, whisk together.
Cube the Cinnamon Raisin Bread (1 slice) and add to the mug.
Stuff bread down with a fork and make sure everything is nicely coated.
Microwave on high for about 2 minutes
Top with Maple Syrup (to taste), Powdered Confectioners Sugar (to taste), or Butter (to taste). Enjoy!