Sweet And Sour Chicken

Name: Sweet And Sour Chicken
Ingredients: 1 pound of boneless and skinless chicken thighs or breasts, cut into 1 chunks; 1 egg white; 1/2 teaspoon kosher salt (1/4 teaspoon table salt); 2 teaspoons cornstarch; 1 10-ounce can pineapple chunks (reserve juice); 1/4 cup juice from the canned pineapple; 1/4 cup white vinegar; 1/4 cup ketchup; 2-3 tablespoons brown sugar; 1 tablespoon + 1 teaspoon cooking oil; 1 red bell pepper, cut into 1 inch chunks; 1 yellow bell pepper, cut into 1 inch chunks; 1 teaspoon grated fresh ginger