Baked Sweet and Sour Chicken
There's something deeply satisfying about cracking open a dish of Baked Sweet and Sour Chicken straight from the oven-tender chicken cloaked in a glossy, tangy sauce with bursts of juicy pineapple and crisp bell peppers. It's a weeknight dinner hero that never fails to impress guests at potlucks and family gatherings alike. What makes it irresistible is that perfect balance of sweet, sour, and savory flavors, all without the grease of traditional fried versions. Home cooks love it because it delivers restaurant-style results with minimal fuss.
What Makes This Recipe Special
- The double-coating technique (cornstarch first, then egg) ensures ultra-juicy, tender chicken that stays moist during baking.
- Apple cider vinegar adds a subtle depth and brightness to the sauce that balances the sweetness better than white vinegar.
- Using two kinds of bell peppers-green and red-adds both color and a beautiful contrast in texture and flavor.
- The sauce is thickened naturally by the cornstarch from the chicken coating, creating a glossy, clingy glaze that coats every bite.
Ingredients
1 and1/2 pounds boneless, skinless chicken breasts, cut into bite-sized pieces
1 cupcornstarch
2 largeeggs, beaten
1/4 cupvegetable oil
1/2 cupgranulated sugar
1/4 cupketchup
1/2 cupapple cider vinegar
1 tablespoonlow-sodium soy sauce
1 teaspoongarlic powder
1/4 teaspoonsalt
1/2 teaspoonground black pepper
1 can(15 ounces) pineapple chunks, drained
1 mediumgreen bell pepper, chopped
1 mediumred bell pepper, chopped
Nutrition
580 caloriesCalories
Per serving · Values are estimates
Instructions
1
Preheat the oven to 350°F (177°C). Lightly grease a 9 by 13-inch baking dish.
2
In a large bowl, toss chicken breast pieces with cornstarch until evenly coated. Dip each piece in the beaten eggs and set aside on a plate.
3
Warm vegetable oil in a large skillet over medium-high heat. Sear the coated chicken pieces quickly on all sides until lightly golden, but not cooked through. Transfer the browned chicken to the prepared baking dish.
4
In a medium bowl, whisk together granulated sugar, ketchup, apple cider vinegar, low-sodium soy sauce, garlic powder, salt, and black pepper until the mixture is smooth.
5
Scatter chopped green bell pepper, red bell pepper, and drained pineapple chunks evenly over the chicken in the baking dish.
6
Pour the prepared sauce evenly over the chicken and vegetables. Bake uncovered for 45 to 50 minutes, stirring once halfway through, until the chicken is thoroughly cooked and the sauce is thick and bubbly.
7
Serve hot. Accompany with cooked white rice if desired.
Essential Tips
Use room-temp eggs
Beat the eggs just before dipping the chicken and use them at room temperature to help the coating adhere better and fry more evenly in the skillet.
Don't over-bake
Pull the chicken out as soon as the internal temperature hits 165°F (74°C), even if it's still a touch pink-it will finish setting as it rests. Overbaking dries out the chicken and makes the sauce thicker.
Toast the cornstarch
After tossing the chicken in cornstarch, let it sit for 5 minutes before dipping in eggs. This helps the starch toast slightly, adding a subtle nutty flavor and better texture.
Stir halfway only
Resist the urge to stir too much when baking. Stir once after 25 minutes to redistribute the sauce, but avoid overhandling-this keeps the chicken pieces intact and ensures even cooking.
Press pineapple dry
Drain the pineapple chunks well and pat them dry with a paper towel before scattering them over the chicken. Wet pineapple can dilute the sauce and make the dish watery.
Smart Swaps & Variations
Spicy Kick
Add 1 teaspoon of chili flakes or 1 minced jalapeño to the sauce for a subtle heat that complements the sweetness.
Extra Crispy
Dip the cornstarch-coated chicken in panko breadcrumbs before the egg for a crispier exterior that stays crunchy even after baking.
Vegetarian
Swap chicken for 1.5 pounds of extra-firm tofu, pressed and cubed, and add an extra 10 minutes to the bake time.
Low-Sugar
Replace sugar with 1/4 cup honey and 1/4 cup coconut sugar for a less processed sweetness and deeper caramel notes.
Gluten-Free
Use tamari instead of soy sauce and ensure the ketchup is gluten-free. The cornstarch coating is naturally gluten-free.
What to Serve With This
- Steamed jasmine or basmati rice to soak up the tangy sauce
- Sesame seeds and sliced green onions sprinkled on top for freshness and crunch
- Light cucumber salad with rice vinegar and sesame oil to cut through the richness
- Iced jasmine tea or a chilled Tsingtao beer to balance the sweet and sour flavors
Storage & Reheating
Storage
Store leftovers in an airtight container in the fridge for up to 3 days. The sauce will thicken slightly as it chills, so add a splash of water or broth when reheating to restore the consistency.
Reheating
Warm in a skillet over medium-low heat with a splash of water or chicken broth, stirring gently until heated through. Avoid microwaving, as it can make the chicken rubbery and the sauce gummy.
Expert Chef Tips
- Add a splash of pineapple juice to the sauce if the mixture is too thick after baking-it adds brightness and helps loosen the sauce naturally.
- For a deeper caramelized flavor, after searing the chicken, deglaze the skillet with a splash of apple cider vinegar and scrape up the browned bits to add to the sauce before baking.
- Let the chicken rest for 5 minutes after baking before serving. This allows the juices to redistribute and the sauce to set slightly, making each bite more flavorful and cohesive.
Equipment You’ll Need
- 9x13-inch baking dish
- Large skillet (for searing)
- Meat thermometer
- Large mixing bowls (for coating and sauce)
Nutritional Benefits
- High in protein from lean chicken breast, with about 45g per serving.
- Contains vitamin C from bell peppers, contributing to immune support and collagen production.
- The sauce provides antioxidants from apple cider vinegar and lycopene from ketchup.
- Moderate in calories (580 per serving), but can be reduced by using less oil and sugar without sacrificing flavor.
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Frequently Asked Questions
Can I skip the skillet sear and bake the chicken directly?
Yes, but searing first adds a subtle caramelized depth to the chicken and ensures better texture. If skipping, increase baking time to 55-60 minutes and stir once after 30 minutes.
What's the best substitute for pineapple?
Canned mandarin orange segments work well for a similar juicy texture, or fresh peaches for a summery twist. Avoid frozen-it releases too much water.
Can I make the sauce ahead of time?
Absolutely! The sauce can be made up to 2 days ahead and stored in the fridge. Rewhisk gently before adding to the baking dish to restore the texture.
Why is my sauce too thin after baking?
This often happens if too much pineapple juice or water is added. Next time, press the pineapple very dry and avoid using the juice from the can. You can also simmer the sauce separately before baking to thicken it.
How do I make this dish less sweet?
Reduce the sugar to 1/3 cup and add 1-2 tablespoons of rice vinegar to balance the sweetness without making the sauce too thin. Taste before baking and adjust.
Can I use chicken thighs instead of breasts?
Yes, chicken thighs are more forgiving and stay juicier. Use bone-in, skinless thighs and increase baking time to 55-60 minutes.
Why does my chicken turn out dry?
Overbaking is the most common culprit. Use a meat thermometer and pull the chicken at exactly 165°F (74°C). Also, avoid overcrowding the baking dish-cook in batches if needed.
Can I freeze baked sweet and sour chicken?
Yes, freeze leftovers in an airtight container for up to 3 months. Thaw overnight in the fridge and reheat gently in a skillet with a splash of liquid to restore moisture.
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