Shuck the Corn: Remove the husks and silk from 4 ears of fresh sweet corn.
Boil: Bring a large pot of salted water to a boil. Carefully add the corn cobs and cook for 3–4 minutes—just until the kernels are slightly tender but still crisp.
Cool Quickly: Remove the corn and immediately transfer to a bowl of ice water to stop the cooking.
Cut Off the Kernels: Once cooled and dried, use a sharp knife to slice the kernels off the cob. You should have about 3 cups of corn.
Make the Dressing: In a small bowl, whisk together the olive oil, fresh lime juice, ground cumin, salt, and black pepper.
Mix the Salad: In a large bowl, combine the parboiled corn (or thawed frozen corn), green onions, chopped cilantro, and cherry tomatoes.
Toss to Coat: Pour the dressing over the salad and toss gently until everything is evenly coated.
Serve or Chill: You can serve the salad immediately, or refrigerate for 1–2 hours to let the flavors blend.