Gather all ingredients.

Heat 2 inches oil in a deep saucepan over medium heat to 365 degrees F (185 degrees C).

While oil is heating, mix together onion, sugar, and eggs in a medium bowl. Blend in flour and cornmeal to make a batter.

Drop batter by rounded teaspoonfuls, 4 at a time, into hot oil and fry until golden brown, 1 to 2 minutes per side. Transfer to a paper towel-lined plate to drain.

Serve hot and enjoy!