Cut the chicken breast into bite-sized pieces.
Season the chicken breast pieces with salt and pepper.
Coat evenly with starch powder.
Pour cooking oil into a pan and heat over medium heat.
Cook the chicken breast pieces as if frying until golden brown.
In a separate bowl, mix the sauce ingredients (soy sauce, oligosaccharide syrup, garlic, vinegar, water).
Add the cooked chicken breast to the sauce and mix well to coat evenly.
Stir-fry until the sauce thickens and fully coats the chicken.