In these off-season months when you cannot find sun-drenched tomatoes, go with the next best thing — sun-dried tomatoes.
Dehydrated tomatoes, whether they are dry-packed or preserved in olive oil, are sweet, tangy and add a burst of flavor in salads, pasta, quick dips and pesto. They make a colorful topping on pizzas, focaccia or crostini and are ideal for an antipasto.
You can thank the sun for their concentrated tomato flavor. When tomatoes dry under the summer sun, their water content is drawn out, leaving them richer in taste and deeper in hue. And they retain their antioxidants and vitamins.
Lisa Mantella, 65, who was born and raised in the Calabria region of southern Italy, remembers helping her mother to dry tomatoes during the months of July and August when the sun was at its strongest.
Her mother would monitor the weather forecast in the local newspaper and on the radio. If it was predicted to be sunny and dry for at least three or four days, it was time to pull out a table to the balcony and dry the tomatoes.
"It had to be nice, hot and dry. There could not be any humidity in the air," emphasized the O'Hara, Pa., resident who is a part-time pastry chef at the Pittsburgh Field Club in Fox Chapel.
Only the elongated and sweet San Marzano tomatoes with pointed ends would do. The tomatoes were cut lengthwise in half and sprinkled with a little salt to draw out the moisture. Then they were laid out on a kitchen towel over a tray in a single layer with the cut side facing the sun.
The tomatoes were left out all day long, anywhere from three, four days or more, depending on the sun. Dried tomatoes can lose up to to 93% of their original weight. Mantella determined they were ready by their appearance — the tomatoes needed to have shrunk to three-fourths of their original size.
She was only 5 or 6 years old when she first began helping her mother. Her job was to lay out the halved tomatoes on the tray after her mother had cut them and to move the tray around so they received full sun all day long.
The plum tomatoes were from her family's 40-acre farm, where they also grew eggplant, green beans and broccoli.
Dried tomatoes usually last three or four months. When hydrated in olive oil, they can last six months. The oil imparts flavor to the dried tomatoes and helps them stay fresh. Mantella cautions that the tomatoes need to be completely covered with olive oil and stored in tightly sealed jars.
Dry-packed and oil-packed tomatoes are interchangeable in recipes. To make dry-packed tomatoes less chewy, hydrate them in water or stock first. Oil-packed tomatoes can be used as is, but sometimes the excess oil needs to be patted off.
Garlicky, nutty, sweet and tangy, this sun-dried tomato pesto has everything going for it. Use leftover pesto as a spread on toast or with roasted chicken.
Spaghetti With Sun-Dried Tomato and Pistachio Pesto
- 3 ounces sun-dried tomatoes
- ¼ cup shelled salted pistachios, PLUS 2 tablespoons chopped nuts for garnish, divided use
- ¼ cup PLUS 1 tablespoon olive oil, divided use
- 2 large cloves garlic, crushed
- ½ teaspoon kosher salt
- ¼ teaspoon crushed red peppers
- 7 ounces dried spaghetti
- Coarsely ground pepper
For the pesto, bring a small pot of water to a boil and cook the sun-dried tomatoes for 3 to 4 minutes or until soft. Remove the tomatoes with a slotted spoon and transfer to a plate. Reserve the cooking water.
Drain the tomatoes. Transfer to a blender. Add ¼ cup of the cooking water, ¼ cup of pistachios, ¼ cup of olive oil, garlic, salt and crushed peppers. Puree until smooth. Taste and add more salt if needed. If the pesto is too dry, add a little more of the cooking water.
For the pasta, bring a large pot of salted water to a boil and cook the spaghetti according to the package directions until al dente.
Drain the spaghetti, divide among the plates and drizzle with remaining olive oil. Sprinkle with the pesto, chopped pistachios and a little pepper. Serve warm.
Makes 2 servings.
Recipe adapted from "365: A Year of Everyday Cooking and Baking" by Meike Peters (Prestel; 2019)