Cut the chicken into bite-sized pieces.
Slice the onion and paprika into thin strips.
Heat cooking oil in a pan and stir-fry the chicken.
When the chicken is halfway cooked, add the onion and paprika and stir-fry together.
Add soy sauce, sugar, and minced garlic, then stir-fry to let the flavors absorb.
Sprinkle with ground pepper and mix everything once more.
Transfer to a plate to serve.