Heat oil in a medium saucepan over medium heat. Add ginger and garlic; sauté 1 minute. Add broth and next 5 ingredients (broth through chile paste); stir with a whisk. Bring to a boil. Reduce heat, and simmer 7 minutes or until sauce is smooth and thick, stirring occasionally. Pour into a fondue pot; keep warm over low flame. Serve with chicken, bell pepper, snow peas, pineapple, and water chestnuts.