Rinse the chicken pieces and pat them dry.
In a bowl, mix flour, cornstarch, baking powder, garlic powder, salt, and black pepper.
Gradually add water to the dry ingredients to create a smooth batter.
Dip each chicken piece into the batter until well-coated.
Heat vegetable oil in a deep pan over medium-high heat.
Fry the chicken in batches for about 10-12 minutes until golden brown.
Remove the chicken and drain on paper towels.
In a separate pan, combine gochujang, honey, soy sauce, and rice vinegar to make the sauce.
Cook the sauce until bubbly, then remove from heat.
Toss the fried chicken in the sauce until fully coated.