
Heat a gas or charcoal grill to medium heat. Grill the husked corn, turning the ears every few minutes, until the kernels are blistered and the color has gone from pale to bright yellow. Let the corn cool, and then slice the kernels off the cobs.
In a medium serving bowl, combine the grilled corn, Chipotle Crema, scallions, cilantro, serrano, garlic, and lime juice and mix well.
Sprinkle with the popcorn, Cotija, and more cilantro.