The phrase identifies a specific method for preserving a tomato-based sauce through heat processing, incorporating prior roasting of the constituent vegetables. This technique fundamentally involves roasting ingredients like tomatoes, peppers, onions, and garlic to enhance their flavor profile before combining them into a salsa, which is then preserved using canning methods to ensure long-term storage and safety.
Following safety guidelines for preserving food at home ensures harmful bacteria will not develop. Roasting vegetables prior to creating and canning a salsa imparts a deeper, richer taste, differentiating it from fresh or conventionally cooked salsa. This also results in a product suitable for enjoyment throughout the year, preserving fresh produce beyond its seasonal availability, making it a valuable food preservation skill.
