Raw ingredients, such as cucumber, carrots, lettuce, mung bean sprouts, and fresh mint leaves, make this refreshing dish ideal for summer. The sauce, called nuoc cham, is present at every meal in Vietnam and drizzled over grilled meats, plain rice, or noodles. Homemade herbal oil and fried herbs are widely used in Asia. In Vietnam, shallot oil and fried shallots are the most popular and are used to garnish meat, seafood, rice, and noodle dishes.