Sprinkle chicken with garlic salt & pepper. Let stand for 5-10 minutes. Preheat oven to 325 degrees.
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Put the corn starch and chicken into a Ziploc bag and shake the hell out of it. Dip the coated chicken pieces in the egg.
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In at least two batches, fry the chicken in the hot skillet, making sure all sides are brown. Repeat until with the remainder of the chicken. Place in a pan. ( 3 chicken breasts can be in a 9×9 , and 5 chicken breasts fits better in a 9×13)
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* (Optional) Take your sweet & sour chicken up a notch. Sprinkle yellow onion, fresh pineapple and bell pepper on top before adding the sauce.
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Mix sugar, ketchup, vinegar, garlic salt and soy sauce in medium bowl. Whisk until smooth. Then pour evenly over chicken. Turn chicken so the sauce gets on both sides.
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Bake for 50-60 minutes, turning the chicken once or twice while cooking to coat evenly with sauce.
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Garnish with scallions and sesame seeds.
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Serve over hot, steamed bed of rice, or soft Flour Taco shells