1Dice the chicken breast and coat with baking powder, salt, pepper, garlic powder, and 100g of cornstarch.
2Mince the garlic and ginger, then slice the green onions.
3Whisk together gochujang, ketchup, honey, soy sauce, rice vinegar, toasted sesame oil, minced garlic, minced ginger, water, and 25g of cornstarch in a large bowl to make the sauce.
4Cook the chicken and mix with the prepared sauce.
5Divide into meal prep jars, topping with optional sesame seeds and chopped green onions.