Cut the chicken thighs into bite-sized pieces.
1 lb boneless chicken thighs
In a container or a plastic bag, combine the grated ginger, grated garlic, soy sauce, and sake. Mix well.
1/2 tablespoon freshly grated ginger, 1-2 cloves of freshly grated garlic, 3 tablespoons soy sauce, 1 tablespoon sake, Ground black pepper
Add the chicken to the marinade and mix until each piece is coated. Let it marinate in the fridge for 15 to 20 minutes.
Heat vegetable oil in a deep frying pan or wok to 180 degrees Celsius or 350 degrees Fahrenheit.
Vegetable oil
Remove the chicken from the marinade and coat each piece with potato starch.
1 cup potato starch
Fry the coated chicken in the hot oil until golden and crispy. Lift the chicken from the oil occasionally to allow it to crisp up.
Once cooked, remove the chicken from the oil and place it on a paper towel to drain any excess oil.