Mix together cinnamon and sugar very well. In a dutch oven, or large skillet heat the oil to 350 Degrees. If you do not have a thermometer, you can set it on med high, but be careful to watch that it doesn't get too hot and begin to smoke.
Quarter the tortillas and deep fry 2-4 at a time. Allow them to cook on one side for about 30 seconds or until golen brown, turn over, and repeat. When both sides are brown take out, and place on paper towels to drain. While the tortillas are draining liberally sprinkle with cinnamon mix.