Homemade Sweet and Sour Chicken in 15 Minutes - cookrisp

Ingredients

• ¾ cup granulated sugar
• ½ cup apple cider vinegar
• ¼ cup ketchup
• 2 tablespoons low-sodium soy sauce
• 1 tablespoon sesame oil
• 1 tablespoon packed light brown sugar
• 3 cloves garlic, pressed or finely minced
• 2 tablespoons cold water
• 1 tablespoon cornstarch
• 1.25 pounds boneless skinless chicken breasts, cut into 1-inch pieces (substitute: boneless skinless chicken thighs)
• 3 tablespoons cornstarch
• Salt and pepper, to taste
• 3 to 4 tablespoons olive oil, plus more as necessary
• 2 green onions, sliced into thin rounds (optional, for garnish)
• 1 tablespoon sesame seeds (optional, for garnish)