Delicious Baked Sweet and Sour Chicken (Takeout-Style) - My Home Made Recipe

Ingredients

• 1 1/2 lb (680 g) boneless skinless chicken breasts or thighs, cut into 1-inch pieces
• 1 teaspoon kosher salt
• 1/2 teaspoon black pepper
• 1 large egg, beaten
• 3/4 cup (95 g) cornstarch
• 3 tablespoons neutral oil, divided
• 1/2 cup (120 ml) pineapple juice from canned pineapple
• 1/3 cup (80 ml) ketchup
• 1/3 cup (65 g) packed brown sugar
• 1/4 cup (60 ml) apple cider vinegar
• 2 tablespoons low-sodium soy sauce
• 2 cloves garlic, minced
• 1 teaspoon grated fresh ginger
• 1 tablespoon cornstarch mixed with 3 tablespoons water
• 1 red bell pepper, cut into bite-size pieces
• 1 green bell pepper, cut into bite-size pieces
• 1 small yellow onion, cut into chunks
• 1 cup (170 g) pineapple chunks, drained
• 2 scallions, sliced, for serving
• 1 teaspoon sesame seeds, optional