Heirloom Tomato Salsa Fresca

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This post comes courtesy of Tori Avey, blogger at The Shiksa Blog


Like most Americans, I grew up eating plain old red tomatoes (romas, beefsteaks, cherry tomatoes, etc.). In college, when I became more adventurous in the kitchen, I discovered heirloom tomatoes—those oddly shaped, dimpled tomatoes that come in a rainbow of hues. From purple to yellow to brown to green, each heirloom has its own unique flavor and texture. I quickly became a fan of these strange looking tomatoes. Their flavor is far superior to the bland grocery store tomatoes I grew up with. Only recently have I discovered why heirlooms taste so amazing… and, not surprisingly, I found the answer in food history.


Before seeds were sold by merchants or through catalogues, families saved and replanted seeds from one crop to the next. Heirloom vegetables and fruits are plant varieties that have been passed down from generation to generation, cultivated from original seeds that are over 100 years old. To be considered a true heirloom, the plant must have been introduced prior to 1951, when plant breeders began to hybridize inbred plant lines. The plant must also be open pollinated in a natural way– by insects, birds, wind or weather. Popular heirloom foods include squash, beets, beans, apples, corn, lettuce—and, of course, tomatoes.


European colonization of the New World brought a number of new plant species to North America. According to the Oxford Companion to American Food and Drink, “People emigrating from the Old World, including Africa, as far back as the 16th century, brought seeds with them to America. When the seeds were planted, many of them were able to adapt to the new weather and soil conditions. These hardy species brought considerable genetic diversity to the New World.” The plants naturally adapted to their new environment over the centuries, becoming resistant to extreme weather and other difficult growing conditions. Heirlooms are the direct descendants of these original seeds, and because of this they are uniquely resilient plants.


Experimenting with and cultivating heirlooms has been a popular pastime for centuries. Even Thomas Jefferson was a fan; he grew heirlooms at his Monticello plantation. In his 1,000-foot long garden terrace, Jefferson tended a number of heirloom varieties, taking meticulous notes on their growth and cultivation of each species in his “Garden Kalendar.” He used heirloom gardening techniques to selectively weed out the inferior vegetable varieties.


As he noted in his Garden Book: “I am curious to select one or two of the best species or variety of every garden vegetable, and to reject all others from the garden to avoid the dangers of mixing or degeneracy.” Jefferson was successful in many of his gardening experiments; in fact, today you can purchase heirloom seeds that Jefferson himself cultivated directly from Monticello.


Today, heirlooms are prized not only for their interesting colors and shapes, but for their natural genetic variation. In the past century, genetically modified seeds have been developed for commercial farms. Nowadays, most vegetables you see at the grocery store are grown from genetically modified seeds. Vegetable species are genetically altered to create specific traits– drought and frost resistance, tolerance of pesticides, and the ability to withstand long shipping periods. Flavor is often sacrificed in favor of other genetically desirable traits. You’ve probably experienced this yourself– if you’ve tasted a tomato from the grocery store that appeared ripe, and found it bland and not at all sweet, it was likely grown from a genetically modified seed.


The more these genetically modified vegetables are cultivated, the less biodiversity there is, and the more we become dependent on large corporations (who own the patents to the genetically modified seeds) for our food. This means that heirloom vegetables don’t just taste better, they’re better for the environment and biodiversity. Heirloom enthusiasts cultivate these unique varieties in hopes of preserving them for future generations.


Heirloom tomatoes have gained popularity in recent years, and are now more readily available than they once were. Because of their terrific flavor, you can experiment with substituting heirlooms for regular tomatoes in your favorite dishes. In this recipe, I’ve added them to salsa fresca to create a healthy and tasty garden-fresh dip. Grilled corn adds smoky sweetness to the mix while avocado adds richness. Serve with tortilla or corn chips as an appetizer, or use this chunky salsa to top freshly grilled fish. It’s a delicious heirloom tomato twist on salsa fresca.


Heirloom Tomato Salsa Fresca


1 ear of sweet yellow corn, shucked and cleaned

Extra-virgin olive oil

2 lbs. ripe heirloom tomatoes, diced

1 small red onion, minced

1 ripe avocado, diced plus 2 slices avocado for garnish

1 to 3 jalapeños, seeded and minced

¼ cup chopped cilantro

3 Tbs. freshly squeezed lime juice (or more to taste)

Salt to taste


Preheat your grill on medium heat. Coat the corn lightly with olive oil and sprinkle with salt. Place the corn on the grill and let it grill, giving a quarter turn every 4 to 5 minutes, till the corn is tender and lightly charred (about 20 minutes total).


While the corn is grilling, chop up your heirloom tomatoes, red onion, avocado, jalapeño, and cilantro. Use 1 jalapeño for a mild salsa, or 3 for a kick. Alternatively, you can substitute 1 serrano chile to make it spicy. Place all of the chopped vegetables and cilantro into a medium mixing bowl.


When the corn is finished grilling, let it cool enough to comfortably handle. Cut the corn off of the cob using a sharp knife. Add the grilled corn kernels to the mixing bowl. Add fresh lime juice and toss to mix the vegetables. Season the mixture with salt to taste. Let the ingredients macerate at room temperature for 20 to 30 minutes to allow the flavors to blend, or chill in the refrigerator till ready to serve.


Before serving, taste again and adjust seasonings by adding more lime juice or salt to taste, if desired. Flavorful liquid will collect in the bowl over time; you can leave it for dipping (it tastes delicious) or drain it off for a cleaner appearance.


Garnish the salsa with 2 slices of avocado. Serve with tortilla or corn chips for dipping. This salsa also goes well on top of grilled fish.


About the author: Tori Avey is a culinary anthropologist, recipe developer, and creator of two cooking websites – The Shiksa in the Kitchen and The History Kitchen. She explores the story behind the food– why we eat what we eat, how the foods of different cultures have evolved, and how yesterday’s food can inspire us in the kitchen today. Tori’s food writing and photography have appeared on the websites of CNN, Bon Appetit, PBS Food, Yahoo Shine, LA Weekly and The Huffington Post. The Shiksa in the Kitchen was recently named the IACP People’s Choice Award winner for Best Culinary Website.

9 comments about “Heirloom Tomato Salsa Fresca

  1. Shlomit Manson

    This sounds like a wonderful summer course. I assume that for those of us who have a strong dislike for cilantro, it would be just as good if we use parsley. I have recently discovered an Argentinean gentleman in a farmer’s market who makes awesome chimichuri (sp?) condiments. He offers one version using parsley instead of the traditional cilantro and I have become hooked!

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