Grandma’s Chicken Noodle Soup

INGREDIENTS

• 2 1/2 cups wide egg noodles
• 1 teaspoon vegetable oil
• 12 cups chicken broth
• 1 1/2 tablespoons salt
• 1 teaspoon poultry seasoning
• 1 cup chopped celery
• 1 cup chopped onion
• 1/3 cup cornstarch
• 1/4 cup water
• 3 cups diced, cooked chicken meat