¼tspJapanese mustard (karashi)optional, for authentic Oita style
Instructions
Cut 400 g chicken breast into large bitesize pieces.
Add 2 tsp Japanese soy sauce (koikuchi shoyu), 1 tsp grated ginger root, 1 tsp grated garlic, 1 tsp sake and 1 tsp toasted sesame oil to a mixing bowl, mix well and add the chicken pieces. Mix until the chicken is fully coated, cover with plastic wrap and rest in the refrigerator for 30 minutes. (I also recommend measuring out the water for the batter at this point and chilling for 30 minutes too!)
Start heating your oil to 170 °C (338 °F). While you wait, gently whisk 1 egg with 50 ml water straight from the fridge, being careful not to let it become too foamy.
Sift 4 tbsp cake flour and 3 tbsp potato starch (katakuriko) into the bowl and mix gently, it's okay if there are small lumps in the batter.
Once the oil is preheated, dip the chicken in the batter and deep fry for 4 minutes, turning it halfway through.
Transfer the cooked toriten to a wire rack to allow the excess oil to drain off.
Mix the 1 tbsp kabosu juice (or citrus of your choice), 1 tbsp Japanese soy sauce (koikuchi shoyu) and 1 tbsp rice vinegar in a small bowl.
Dish up and enjoy!
Notes
Slice chicken against the grain at a 45° angle for more tender results.
Don't marinate longer than 30 minutes.
Keep batter cold at all times by either keeping it in the fridge or adding a few ice cubes to prevent gluten formation.
Leftover Toriten can be stored in an airtight container for up to 2 days - reheat in oven at 180°C (350°F) for 5-8 minutes (never microwave).