Preheat oven to 400ºF (~205ºC). Line two large baking sheets with parchment paper.
Slice the wonton wrappers down the middle so that you create rectangles.
Line sliced wonton wrappers onto the baking sheets in a single layer. Spray the wrappers with cooking spray, making sure to cover all the surface area of each piece.
Sprinkle sugar on top of the wrappers. Don't be afraid to sprinkle liberally. Next, sprinkle the cinnamon. I found it easiest to just shake the cinnamon from the container rather than pinching some in my fingers and then sprinkling.
Bake the wrappers for 6-7 minutes. Be careful! They burn quickly, so pull them out when the edges start to turn slightly brown. I baked everything in two batches.
Let the crisps cool for a few minutes and enjoy!
Store in room temperature in an airtight container.