Preheat oven to 200℃ or 392℉. Combine sugar and ground cinnamon in a deep bowl until well combined. The amounts are up to your personal preference. Stack flour tortillas and depending on size desired, cut into 1/8ths – small triangles. Place the triangles on baking sheet, brush with olive oil or melted butter, flip and brush opposite sides too. Place in center of oven and bake until golden and crispy. Remove from oven and lightly brush with more olive oil or melted butter. Gently toss the baked and oiled chips in the cinnamon sugar, careful as the chips may be hot. Serve at room temperature or as desired.
*It helps if the tortillas are a few days old or are dry. This makes them crisp up quicker. You could also leave fresher tortillas out on the counter for 30 minutes before baking.