
Made with AI
Cut the chicken breast into bite-sized pieces.
In a bowl, toss the chicken pieces with cornstarch until evenly coated.
Heat the vegetable oil in a large skillet over medium-high heat.
Add the chicken to the skillet and cook until golden brown and cooked through, about 5-7 minutes. Remove the chicken and set aside.
In the same skillet, add the pineapple chunks, bell pepper, and onion. Stir-fry for 3-4 minutes until the vegetables are tender.
In a small bowl, mix together the vinegar, ketchup, sugar, and soy sauce.
Pour the sauce mixture into the skillet with the vegetables and bring to a simmer.
Return the chicken to the skillet and toss to coat with the sauce.
Cook for an additional 2-3 minutes until the chicken is heated through and the sauce has thickened.
Serve the sweet and sour chicken hot, optionally over rice or noodles.