Marinara sauce is a simple tomato-based sauce commonly used in Italian cuisine. It is made from fresh or canned tomatoes, garlic, onions, and herbs like basil and oregano. The sauce is typically simmered for a short time, allowing the flavors to meld together, making it a quick and easy option for many dishes. This versatile sauce is often served with pasta, used as a dipping sauce for breadsticks, or as a base for pizza. Marinara sauce is popular for its rich flavor and can be customized with additional ingredients like olives or capers to enhance its taste.