Oven-Baked Sweet and Sour Chicken Recipe hits that perfect takeout-style flavor with crispy edges, sticky sauce, and juicy chicken in under about 1 hour from start to finish. It works for busy weeknights, picky eaters, and anyone who wants a lighter version of sweet and sour chicken without deep frying. I tested this on my own family of sauce-obsessed humans, and no one missed the takeout box.

Why Oven-Baked Sweet and Sour Chicken Recipe Is Worth It

Oven-baked sweet and sour chicken tastes crispy on the outside, tender inside, and glossy with a tangy, slightly sticky sauce. It gives that classic takeout flavor, but you control the sugar, salt, and oil, so it feels lighter and more homey.

You skip the mess and splatter of deep frying, which saves time and cleanup. The oven does the work while you cook rice, steam veggies, or scroll recipes you will never actually make.

“This oven-baked sweet and sour chicken tastes like my favorite takeout, but cleaner and fresher, and my kids lick the pan clean every time ★★★★★”

Ingredients You Need

Here is everything you need for the best Oven-Baked Sweet and Sour Chicken Recipe.

Chicken

1.5 to 2 pounds boneless skinless chicken breast, cut into 1-inch pieces
- You can use boneless skinless thighs for juicier bites.
1 teaspoon kosher salt
1/2 teaspoon black pepper
2 large eggs, beaten
1/2 cup cornstarch
- Use potato starch if you run out of cornstarch.

Sweet and sour sauce

1/2 cup ketchup
- I like Heinz or a similar thick brand so the sauce clings well.
1/2 cup rice vinegar
- Apple cider vinegar works in a pinch, but rice vinegar tastes smoother.
1/3 cup granulated sugar
- Use less sugar if you prefer a sharper tang.
1/4 cup low sodium soy sauce
- Use tamari or coconut aminos for gluten free.
1/3 cup pineapple juice
- Use juice from a can of pineapple chunks to avoid waste.
1 tablespoon cornstarch
1 tablespoon water

Veggies and add-ins

1 red bell pepper, cut into 1-inch pieces
1 green bell pepper, cut into 1-inch pieces
1 small yellow onion, cut into 1-inch chunks
1 cup pineapple chunks, canned or fresh, drained
2 cloves garlic, minced
1 teaspoon grated fresh ginger
- Use 1/4 teaspoon ground ginger if you do not have fresh.

Oil and garnish

3 tablespoons neutral oil, such as canola or avocado oil
2 teaspoons sesame oil, optional but tasty
2 tablespoons sliced green onions
1 tablespoon toasted sesame seeds

Pantry shortcuts

Use bottled sweet and sour sauce if you feel tired, but whisk in a splash of soy sauce and vinegar to brighten it.
Use frozen bell pepper strips and frozen pineapple to save chopping time.
Use pre-minced garlic and ginger from a jar on extra busy nights.

Equipment list

Large rimmed baking sheet
Parchment paper or a silicone baking mat
Mixing bowls
Whisk
Tongs or a spatula
Small saucepan
Measuring cups and spoons

Quick Tips & substitutions

Cut chicken into even pieces so it cooks at the same rate.
Pat chicken dry before coating so the cornstarch sticks well.
Spray the parchment lightly with oil so the coating gets crisp and does not stick.
Toss chicken in cornstarch first, then egg, for a light, crisp shell.
Use thighs instead of breasts if you want extra juicy chicken.
Swap rice vinegar with apple cider vinegar if needed, but use a tiny pinch of extra sugar to balance the sharper flavor.
Use tamari or coconut aminos and gluten free cornstarch for a gluten free version.
Skip pineapple if you dislike fruit in savory dishes and add extra bell pepper instead.
Add a pinch of red pepper flakes if you like a little heat.
Double the sauce if your household lives by the motto “more sauce, more happiness.”

How to Make Oven-Baked Sweet and Sour Chicken Recipe

Step 1: Prep the oven and pan

Preheat your oven to 400°F. Line a large rimmed baking sheet with parchment paper and lightly oil it so the chicken crisps instead of glues itself to the pan. Set the pan aside while you prep the chicken.

Step 2: Season and coat the chicken

Place the chicken pieces in a bowl and season with salt and pepper. Sprinkle the 1/2 cup cornstarch over the chicken and toss until every piece looks coated and slightly powdery. Beat the eggs in a separate bowl, then dip the cornstarch-coated chicken into the egg, shaking off extra.

Arrange the coated chicken pieces on the prepared baking sheet in a single layer. Leave a little space between pieces so the edges crisp instead of steam. Drizzle or spray the tops lightly with oil.

Step 3: Bake the chicken

Slide the pan into the hot oven and bake for 15 minutes. Flip each piece with tongs and bake for another 10 to 12 minutes, until the chicken looks golden and the internal temperature reaches 165°F. The coating should look set and slightly crisp.

Step 4: Sauté the veggies

While the chicken bakes, heat 1 tablespoon neutral oil in a large skillet over medium high heat. Add the onion and bell peppers and cook for 4 to 5 minutes until they soften slightly but still keep some crunch. Stir in the garlic and ginger and cook for 30 seconds until fragrant, then turn off the heat.

If you use canned pineapple, add the drained chunks to the skillet and toss gently. You do not need to cook the pineapple much, just warm it slightly. Set the skillet aside while you make the sauce.

Step 5: Mix the sweet and sour sauce

In a bowl or large measuring cup, whisk together ketchup, rice vinegar, sugar, soy sauce, and pineapple juice. Taste and adjust the sweetness or tang to your liking. In a small cup, stir the cornstarch and water until smooth, then whisk that slurry into the sauce mixture.

Step 6: Thicken the sauce

Pour the sauce into a small saucepan and set it over medium heat. Bring it to a gentle simmer while you stir, and keep stirring until it thickens and turns glossy, about 2 to 3 minutes. Turn the heat to low and stir in the sesame oil if you use it.

If the sauce looks too thick, splash in a tablespoon of water at a time until it reaches your favorite consistency. If it looks too thin, let it bubble for another minute. You want it thick enough to cling to the chicken.

Step 7: Combine chicken, veggies, and sauce

When the chicken finishes baking, transfer it to the skillet with the peppers, onion, and pineapple. Pour the hot sweet and sour sauce over everything. Toss gently until every piece of chicken and every veggie looks coated and shiny.

Let the mixture sit on low heat for 2 to 3 minutes so the flavors mingle and the coating soaks up a bit of sauce. Taste and adjust with a pinch of salt or a splash of vinegar if needed. Sprinkle with green onions and sesame seeds right before serving.

Recipe Variations

Gluten free: Use tamari or coconut aminos instead of soy sauce and confirm your cornstarch label lists gluten free.
Lower sugar: Cut the sugar to 3 tablespoons and use extra pineapple juice for natural sweetness.
No pineapple: Skip the pineapple and add extra bell pepper and onion for a more savory version.
Extra veggies: Toss in snap peas, broccoli florets, or carrots during the sauté step.
Spicy version: Add red pepper flakes or a drizzle of chili sauce to the sweet and sour sauce.
Vegan: Use extra firm tofu cubes or cauliflower florets instead of chicken, coat them the same way, and bake until crisp.
Low carb: Use a low sugar ketchup, reduce sugar to 1 to 2 tablespoons, and serve over cauliflower rice.

Ways to Serve Oven-Baked Sweet and Sour Chicken Recipe

Spoon over hot jasmine rice or brown rice.
Serve with steamed broccoli, green beans, or snap peas on the side.
Pile into lettuce cups for a lighter, crunchy option.
Serve over cauliflower rice for a lower carb plate.
Pack leftovers into meal prep containers with rice and veggies for easy lunches.

Storage Success

Let the sweet and sour chicken cool to room temperature, then store it in an airtight container in the fridge for up to 4 days. The coating softens in the sauce, but the flavor deepens and still tastes amazing. Reheat gently on the stovetop over medium low heat with a splash of water or pineapple juice, or use the microwave in short bursts and stir between each round. If you want a fresher texture, bake a small batch of new chicken pieces and toss them with reheated sauce and veggies.