01 -
Wash and cut the red bell pepper, sweet potato, oyster mushrooms, and asparagus into bite-size pieces.
02 -
Combine all-purpose flour, corn flour, rice flour, and salt in a large mixing bowl.
03 -
Gradually pour in cold sparkling water while gently mixing. Avoid overmixing and leave some dry pockets for crispier texture.
04 -
Fill a small pan with enough oil for deep-frying and heat until a batter drop sizzles immediately on contact.
05 -
Dip each type of vegetable into the batter and deep-fry until golden and crisp. Work in batches for best results.
06 -
Transfer fried vegetables onto paper towels to remove excess oil.
07 -
In a small bowl, mix soy sauce, mirin, rice vinegar, and spicy sesame oil until well combined.
08 -
Arrange hot tempura on a plate and serve immediately with dipping sauce on the side.