Peel and slice onion 1/4 inch thick.
Separate the rings and cover with cold water for 30 minutes.
Drain rings completely and wipe dry.
Mix all ingredients except egg white and onion and oil for deep frying into a batter.
Dip each ring in the batter and deep fry in oil till brown and crisp.
Key Ingredients: all purpose flour, salt, baking soda, egg, milk, sesame oil, onion, vegetable oil