In a small bowl, combine soy sauce, sugar, cider vinegar, ketchup, ginger. Whisk until well blended and set aside.
In a large skillet or wok, add vegetable oil and stir fry chicken with garlic for 6-7 minutes or until chicken is no longer pink. Add Mann’s® California Stir Fry and stir fry for 3-4 minutes or until crisp tender. Stir in pineapple and sauce mixture. Heat through.
Optional: Serve over cooked white rice.