Combine Chinese 5 spice powder, kosher salt, coarse black pepper, red pepper flakes, and sugar to prepare the spice mix.
Cut the chicken into thick slices, marinate with soy sauce, garlic paste, and sesame oil. Then, add corn flour and egg white to coat the chicken. Now, deep fry the chicken to prepare crispy chicken.
Cut potatoes into thick fries, boil them for 5 – 10 minutes. The drain water and deep fry the potatoes to prepare the chips.
Sauté the onion and chilies for 5 minutes and assemble crispy chicken and chips.
Toss them with the spice mix and serve in a paper bag.