01 - In a large bowl, whisk together flour, baking powder, baking soda, salt, and sugar until well combined.
02 - Create a well in the center of the flour mixture. Add the egg, water, and 2 tablespoons vegetable oil. Mix with a spatula until a shaggy, sticky dough forms.
03 - Knead the dough directly in the bowl for 1 to 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 to 3 minutes until smooth and elastic.
06 - Return the dough to the bowl, cover, and let rest for 1 hour to allow gluten development.
07 - Transfer dough to a lightly floured surface. Roll or press into a rectangle approximately 1/2 inch thick. Cut into strips 1 inch wide and 5 inches long.
08 - Place one dough strip on top of another. Press lengthwise down the center with a chopstick or knife back to fuse the pair together. Repeat with remaining strips.
09 - Heat vegetable oil in a deep pot or fryer to 375°F.
10 - Gently stretch each paired dough strip to approximately 8 inches in length, being careful not to tear.
11 - Carefully lower 2 to 3 sticks into the hot oil. Fry for about 2 minutes, turning constantly with chopsticks, until puffed and golden brown on all sides.
12 - Remove fried sticks and drain on a wire rack or paper towels. Serve immediately while warm.