01 - Whisk together flour, baking powder, baking soda, salt, and sugar in a large bowl until well combined.
02 - Create a well in the center of the flour mixture. Add the egg, water, and 2 tbsp vegetable oil. Mix with a spatula until a shaggy, sticky dough forms.
03 - Knead the dough directly in the bowl for 1-2 minutes until just combined. The dough will remain sticky.
04 - Cover the bowl with plastic wrap and let the dough rest at room temperature for 15 minutes.
05 - Lightly oil your hands and work surface. Knead the dough for 2-3 minutes until smooth and elastic.
06 - Return the dough to the bowl, cover, and let rest for 1 hour to develop structure.
07 - Roll or press the dough on a lightly floured surface into a rectangle about 1/2 inch thick. Cut into strips 1 inch wide and 5 inches long.
08 - Place two strips on top of each other. Press lengthwise down the center with a chopstick or knife back to fuse them together.
09 - Heat vegetable oil in a deep pot to 375°F.
10 - Gently stretch each dough pair to approximately 8 inches in length.
11 - Carefully lower 2-3 sticks into the hot oil. Fry, turning constantly with chopsticks, until puffed and golden brown, about 2 minutes per stick.
12 - Remove fried sticks and drain on a wire rack or paper towels. Serve immediately while warm.