01 - Heat a grill pan or skillet over medium-high heat. Add fresh corn kernels and char for 4–5 minutes until lightly browned, stirring occasionally. Remove from heat and let cool completely.
02 - In a large mixing bowl, combine the cooled corn, diced cucumbers, red onion, cilantro, and jalapeño. Mix gently to distribute evenly.
03 - In a separate small bowl, whisk together sour cream, mayonnaise, minced garlic, lime juice, smoked paprika, chili powder, salt, and black pepper until smooth and well combined.
04 - Pour the creamy dressing over the vegetable mixture. Toss gently with a spatula or spoon until all ingredients are evenly coated.
05 - Fold in the crumbled cotija cheese. Taste and adjust seasoning with additional salt or lime juice if desired. Refrigerate for 10–15 minutes before serving to allow flavors to meld.