Marinate chicken with buttermilk, gochujang, salt, garlic powder, and pepper for at least an hour.
Toss the chicken in cornstarch, flour, and baking powder until fully coated.
Airfry at 400°F for 10-12 minutes or normal fry at 350°F for 4-5 minutes until lightly golden. Remove and rest 5 minutes. Fry it twice for extra crisp.
While the chicken cooks, combine all sauce ingredients in a skillet and simmer for 2-3 minutes until glossy.
Toss hot chicken in the sauce.
Mix together the cucumber salad ingredients.
Whisk together the Kewpie drizzle ingredients.
Serve over rice with the cucumber salad, and finish with green onions, sesame seeds, and an extra squeeze of lime.
