Salsa has surpassed ketchup as the number one condiment in the United States, and with good reason: it’s fresh and more complex in flavor than the old American standby. Alas, many salsas are packaged in plastic, and contain stabilizers that increase their shelf life but impinge on their flavor. By making your own with fresh tomatoes from the Farmers Market, and you are reducing your carbon footprint and creating a flavorful staple with multiple uses.