Prepare the sauce: mix mayonnaise, sriracha, sugar, and vinegar.
Beat eggs, salt and pepper.
Cut the chicken breasts into pieces.
Combine breadcrumbs, onion ,and garlic powder.
Preheat the oven to 375, cover the pan with parchment or foil, spray with oil.
Pour a cup of flour to the chicken and mix until it is completely covered.
Dip the chicken in the egg mixture, then in the breadcrumbs, and spread on a baking sheet.
Spray the oil over the chicken and bake for 25 minutes or until golden brown.
Pour the finished chicken into the sauce and serve.