Step 1: Prepare the Chicken

1. Pat the chicken pieces dry with paper towels and season them with salt and black pepper.
2. In a shallow dish, mix the flour and cornstarch. In another shallow dish, beat the eggs.
3. Dip each piece of chicken into the egg, allowing any excess to drip off, and then coat it in the flour-cornstarch mixture. Place the coated chicken on a plate and repeat with the remaining pieces.

Step 2: Fry the Chicken

1. Heat about 2 inches of vegetable oil in a deep skillet or wok over medium-high heat until it reaches 350°F (175°C).
2. Fry the chicken in batches, being careful not to overcrowd the pan. Cook for 4-5 minutes per batch, or until the chicken is golden brown and fully cooked (internal temperature of 165°F/75°C).
3. Transfer the fried chicken to a paper towel-lined plate to drain excess oil. Repeat with the remaining chicken.

Step 3: Make the Honey Sesame Sauce

1. In a small saucepan, combine the honey, soy sauce, ketchup, rice vinegar, sesame oil, garlic powder, and water. Whisk until well combined.
2. Bring the mixture to a simmer over medium heat.
3. Add the cornstarch slurry (1 tablespoon cornstarch mixed with 2 tablespoons water) and stir until the sauce thickens, about 1-2 minutes. Remove the sauce from heat.

Step 4: Toss the Chicken in the Sauce

1. In a large skillet or wok, combine the fried chicken and honey sesame sauce. Toss gently to coat the chicken evenly in the sauce.

Step 5: Garnish and Serve

1. Transfer the Honey Sesame Chicken to a serving dish. Sprinkle with toasted sesame seeds and sliced green onions.
2. Serve immediately with steamed rice, noodles, or sautéed vegetables.