Begin by bringing a large pot of water to a boil over high heat.

Carefully add fresh corn kernels and cook for 5-7 minutes until tender yet crisp.

Drain the corn and set aside to cool.

In a large mixing bowl, combine the cooled corn with diced cucumber, halved cherry tomatoes, and finely chopped red onion.

In a separate bowl, whisk together mayonnaise, sour cream, lime juice, chili powder, salt, and pepper.

Pour the creamy dressing over the vegetable mixture and gently toss to coat.

Sprinkle crumbled feta cheese and chopped cilantro on top before serving.