Heat a skillet over medium-high heat and cook the corn until slightly charred, about 3–5 minutes. Remove from heat and let it cool slightly.
In a large bowl, combine the shredded green and purple cabbage, chopped cilantro, jalapeño, and roasted corn.
In a separate bowl, whisk together the mayonnaise, sour cream, lime juice, chili powder, and a pinch of salt. For a complete meal, serve alongside Baked Cream Cheese Chicken.
Pour the dressing over the cabbage mixture and toss everything together until well coated.
Sprinkle with crumbled cotija cheese and serve immediately, or let it chill for 15 minutes for enhanced flavor!