Mix 2 cups of all-purpose flour, 1½ teaspoons of baking powder, and ½ teaspoon of salt. Add ¾ cup of warm water and 4 tablespoons of vegetable oil. Mix into a dough.
Knead for 8-10 minutes, until smooth. Cover and rest for 30 minutes.
Mix ½ cup of sugar and 1 tablespoon of ground cinnamon on a plate.
Divide the dough into small balls and roll each into a very thin 8-10in / 20-25cm circle on a lightly floured surface.
Heat 1-2in / 2.5-5cm of vegetable oil in a deep, wide pan to 350°F / 175°C. Fry one circle at a time for about 1 minute per side, until golden.
Drain on paper towels, then sprinkle both sides generously with the cinnamon sugar while warm.