- In a large bowl, combine the flour, salt, pepper, garlic powder, and onion powder. Mix well. 
- In another bowl, whisk the eggs until well beaten. 
- Place the panko breadcrumbs in a third bowl. 
- Dredge each piece of chicken in the flour mixture, shaking off any excess. Dip it into the beaten eggs, then coat it in the panko breadcrumbs, pressing gently to adhere. 
- In a large skillet, heat about 1/2 inch of vegetable oil over medium-high heat. Once hot, carefully add the breaded chicken pieces in batches, frying until golden brown and cooked through, about 5-7 minutes per side. Remove and drain on paper towels. 
- In a separate saucepan, combine the sweet chili sauce, soy sauce, and rice vinegar over medium heat. Stir until warmed through. 
- Once all the chicken is cooked, toss it in the sweet chili sauce mixture until well coated. 
- Serve the chicken hot, garnished with sliced green onions and sesame seeds if desired.