Paleo & Low FODMAP Sweet and Sour Chicken

Name: Paleo & Low FODMAP Sweet and Sour Chicken
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Chinese
Ingredients: 1 lb boneless, skinless chicken breasts, cut into 1-inch chunks; ½ cup arrowroot starch or cornstarch (65g); 1 large egg beaten; 2 tbsp coconut oil; ½ cup coconut sugar or regular white sugar (100g); ¼ cup apple cider vinegar* (60ml); 2 tbsp Coconut Aminos, or gluten free soy sauce/tamari; ¼ cup ketchup or Low FODMAP Ketchup (60 g); ¼ cup chicken stock (60 ml); 1 green pepper cut into chunks; 1 cup pineapple chunks (65 g); 3 spring onions stalks, green part only for low fodmap