Cut chicken thigh into bite-size cubes and marinate with sugar, salt, white pepper powder, garlic, and soy sauce
Beat the eggs. Place ingredients in line: first a bowl of eggs, second, flour in a bowl, third Chicken in another bowl
Dip and coat the chicken cubes with egg first and then flour
Add about 2-3 inches of cooking oil into a small pot, heat it up over medium-high heat
Fry the chicken cubes in the oil over medium-low heat for about 3 minutes in batches
Place the popcorn chicken on a paper towel to absorb the extra oil and cool down for 5 minutes
Refry the popcorn chicken over medium-high heat for about 1 minute
Absorb extra oil with using a paper towel
Plate and serve with a lemon wedge