01 - In a medium saucepan, combine water, butter, 2 tablespoons sugar, and salt. Bring to a rolling boil over medium heat, stirring until sugar and butter are fully dissolved.
02 - Reduce heat to low. Add the all-purpose flour all at once. Stir vigorously with a wooden spoon until a smooth dough forms and it begins to pull away cleanly from the sides of the pan, approximately 2 minutes.
03 - Remove the saucepan from the heat. Allow the dough to cool for 5 minutes to prevent the eggs from cooking prematurely.
04 - Incorporate the eggs one at a time, ensuring each egg is fully beaten into the dough before adding the next. Continue beating until the dough is smooth, glossy, and well-combined.
05 - Transfer the prepared churro dough to a piping bag fitted with a large star tip.
06 - In a deep saucepan or deep fryer, heat the vegetable oil to 350°F (175°C).
07 - Carefully pipe 1-inch (2.5 cm) sections of dough directly into the hot oil, using scissors to cut the dough strands cleanly. Fry batches of 6-8 bites at a time, turning them occasionally, until they are golden brown and crispy, about 2-3 minutes per batch.
08 - Using a slotted spoon, remove the fried churro bites from the oil. Briefly drain them on paper towels to absorb excess oil.
09 - In a shallow bowl, combine the 1/2 cup sugar and ground cinnamon. Gently toss the warm churro bites in the cinnamon sugar mixture until evenly coated.
10 - Serve the cinnamon sugar churro bites immediately while they are warm and crispy.