Preheat the waffle iron and lightly coat both sides with nonstick cooking spray.
In a shallow bowl, whisk together the granulated sugar and cinnamon.
Separate the biscuits and gently stretch each one to about 4 to 5 inches wide.
Place one biscuit in the center of the waffle iron. Close the lid and cook for 4 to 5 minutes, or until the biscuit is golden brown and cooked through.
Immediately transfer the warm waffle to the cinnamon-sugar mixture and coat both sides evenly.
Repeat with the remaining biscuits.
Serve warm and enjoy.
Notes
Refrigerate any leftovers in an airtight container for up to 5 days.