Preheat the grill to medium heat. Remove the corn from its husk then grill directly over the heat for 5-8 minutes until lightly charred, rotating occasionally.
4 ears of corn
Meanwhile, combine the sour cream, mayo or Greek yogurt, lime zest, lime juice, garlic, vinegar, salt, and pepper. Whisk well and set in the fridge until ready to use.
1/2 cup sour cream, 1/4 cup Greek yogurt or mayonnaise, 1 lime, 2 Tablespoons white vinegar, 1/4 teaspoon kosher salt, 1/4 teaspoon freshly ground black pepper, 1 clove garlic
Slice the corn kernels off the cobs directly into a large bowl. Add the cucumber, tomatoes, cilantro, avocado, onion, and jalapeno and toss gently to combine. Add the dressing and toss again. Taste and adjust salt, pepper, or lime juice as needed, then serve.
1/2 cup english cucumber, 1 cup cherry tomatoes, 1/2 bunch cilantro, 1 avocado, 1/2 red onion, 1 jalapeño