Using a meat mallet, lightly pound the chicken thighs to an even thickness. Sprinkle with rice wine vinegar and a pinch of sea salt. Massage the meat to coat it evenly, then dust with cornflour and massage again to ensure even coverage.
Prepare the honey soy glaze: In a small bowl, mix together all glaze ingredients and stir well until combined.
Heat a frying pan over medium heat. Place the chicken thighs skin-side down in the hot pan and fry until golden brown and crispy. Flip the chicken over and pour the prepared honey-soy glaze over the thighs, ensuring they are well-coated. Bring the glaze to a boil, then reduce the heat to a simmer. Cover and cook for 10-15 minutes, basting the chicken with the glaze every few minutes until the sauce thickens to a sticky glaze.
Remove the chicken from the pan and allow it to rest for a few minutes before slicing into thick pieces. Serve with steamed rice, and garnish with chopped chives or spring onions. For an added crunch, consider pairing with a cucumber salad or a crispy fried egg.