Chop garlic cloves and green onions. Then, slice some ginger.
Dry chicken thighs with a paper towel to ensure it is dry. Add some salt and white pepper on both sides.
Heat pan on medium heat. When it is hot, add some neutral oil. Then, add the chicken (skin side down) on the pan gently. Fry for 5 minutes on each side until both sides are golden.
Once the chicken is done set it aside, so the chicken skin remains crispy. You may cut it up in smaller pieces if you like.
Using the same pan on medium fry the dried chili peppers. Fry for one minute and ensure the peppers get a dark red.
Then, add garlic, ginger, and green onions. Fry for one minute.
(optional) Add some shaoxing cooking wine to the pan.
Mix soy sauce, rice vinegar, oyster sauce, sugar, water and corn starch.
Turn heat to low medium. Stir the slurry sauce as the cornstarch is all at the bottom. Then, add the slurry sauce to the pan and continually to mix together so the sauce is not clumpy.
To serve, pour the sauce on top of the chicken and enjoy while crispy. Eat with some steamed vegetables and white rice to soak up the sauce.