How to Make It
Preheat oil in a Dutch oven over medium-high to 350°F.
Add about 10 duros to hot oil at a time, and cook until fully puffed, about 20 seconds. Remove with a slotted spoon or spider, and drain on paper towels. Repeat with remaining duros.
Combine sugar and cinnamon in a large ziplock plastic bag, and shake well. Add about 10 twists to bag, and shake to coat. Shake off any excess, and serve. Repeat with remaining cooked duros.