Tropical Twist Chicken

Ingredients

• 1 1/2 pounds chicken breast, chopped into bite-size pieces
• 1 tablespoon soy sauce
• 1 cup plus 1 tablespoon cornstarch, divided
• 1 large egg
• 1 pineapple
• vegetable oil, to taste
• 2 tablespoons vegetable oil
• 1/2 red bell pepper, chopped
• 1/2 green bell pepper, chopped
• 1/2 cup white onion, chopped
• 2 teaspoons garlic, minced
• 1 teaspoon ginger, minced
• 1/4 cup rice vinegar
• 1/4 cup sugar
• 3 tablespoons ketchup
• white rice, to taste, cooked
• scallions, to taste, sliced
• sesame seeds, to taste