These plum tomatoes are a special variety. They’re a bit longer and thinner than the ones in the grocery store and picked specifically for their balanced flavor. San Marzano tomatoes combine that sweet, tomato taste with the perfect amount of acidity. Plus, they have fewer seeds and break down well when cooked for sauces. While they were originally grown in the volcanic soil of southern Italy, they are now more widely farmed. You can even grow them in your own garden!