This Oven-Baked Sweet and Sour Chicken is a comforting homemade version of a classic favorite. Juicy chicken pieces are lightly coated, baked to perfection, and smothered in a glossy sweet-and-tangy sauce that’s full of flavor. Baking the chicken allows the sauce to thicken beautifully while keeping the dish lighter than deep-fried versions. It’s an easy, family-friendly recipe that pairs perfectly with rice or vegetables for a satisfying meal.
1 lb chicken breasts, cut into bite-sized pieces
½ cup cornstarch
2 large eggs, beaten
⅓ cup vegetable oil
Salt and black pepper, to taste
1 cup sugar
½ cup distilled white vinegar
¼ cup ketchup
1 tablespoon soy sauce
1 teaspoon garlic powder
1 teaspoon onion powder
Preheat the Oven
Preheat oven to 325°F (163°C). Lightly grease a large baking dish.
Prepare the Chicken
Season the chicken pieces with salt and pepper. Coat each piece in cornstarch, then dip into the beaten eggs until fully coated.
Brown the Chicken
Heat vegetable oil in a large skillet over medium-high heat. Cook the chicken in batches for 2–3 minutes per side until lightly browned. The chicken does not need to be fully cooked.
Transfer to Baking Dish
Place the browned chicken evenly in the prepared baking dish.
Make the Sauce
In a medium bowl, whisk together sugar, vinegar, ketchup, soy sauce, garlic powder, and onion powder until smooth.
Bake
Pour the sauce evenly over the chicken. Bake uncovered for 1 hour, stirring every 15 minutes so the sauce thickens and coats the chicken evenly.
Serve
Serve hot over steamed rice or alongside vegetables for a complete meal.
Stir regularly: This helps the sauce thicken evenly and prevents burning.
Balance the flavor: If you prefer less sweetness, reduce the sugar slightly.
Add vegetables: Bell peppers, pineapple chunks, or onions can be added during the last 15 minutes of baking.