Preheat a grill or grill pan to medium high. Mix the butter with the cilantro, lime zest, jalapeno, 1/2 teaspoon salt and a few grinds of pepper in a small bowl until combined; set aside.
Grill the corn, turning occasionally, until lightly charred and tender, 10 to 15 minutes. Remove to a platter and smear with the cilantro butter. Squeeze the lime wedges on top.
We husked the corn before grilling to give the kernels a charred flavor. If you want to leave the husks on, grill 3 to 4 more minutes.
Courtesy of Food Network Magazine