This baked sweet and sour chicken is an easy weeknight dinner made with tender chicken pieces, bell pepper, and pineapple in a glossy homemade sweet and tangy sauce. It’s a simple takeout-style recipe baked in one pan and perfect for serving over rice.
Cut 1 lb chicken breast into bite-size pieces and toss with 2 Tbsp cornstarch until evenly coated.
In a bowl, whisk together ½ cup pineapple juice, ¼ cup brown sugar, 3 Tbsp ketchup, 2 Tbsp rice vinegar, 1 Tbsp soy sauce, 1 tsp garlic powder, and 1 tsp cornstarch until smooth.
Heat 1 Tbsp cooking oil in a large oven-safe skillet over medium-high heat. Add the coated chicken and sear for 30–60 seconds per side, just until lightly golden.
Stir in 1 chopped bell pepper and 1 cup pineapple chunks (if using).
Pour the sauce over the chicken and stir to coat evenly.
Transfer skillet to the oven and bake for 25–30 minutes, stirring halfway through, until the sauce thickens and the chicken reaches 165°F internally.
Serve over cooked white rice or noodles and garnish with green onions or sesame seeds if desired.
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Notes
Cut chicken evenly so it cooks at the same rate.
Do not skip the 1 tsp cornstarch in the sauce – it creates the glossy coating.
Sear quickly to avoid drying out the chicken before baking.
Stir halfwaythrough baking so the sauce thickens evenly and coats the chicken.
Add pineapple at the beginning of baking for softer texture, or at the end for brighter flavor.
Store leftovers in an airtight container in the refrigerator for up to 4 days.
Freeze for up to 2 months in a freezer-safe container.
Reheat gently in a skillet or microwave, adding a splash of water if the sauce thickens too much.