How to Make It
Preheat a grill to medium-high (about 450°F). Stir together melted unsalted butter, kosher salt, chili powder, smoked paprika, ground cumin, and pepper in a small bowl. Brush mixture evenly over fresh corn ears.
Place corn on grate, and grill, uncovered, until tender and lightly charred, 10 to 12 minutes, turning often. Sprinkle corn evenly with finely chopped fresh chives.