Grill:
Preheat grill to medium-high heat. Grill chicken breasts for 6–8 minutes per side, or until fully cooked and lightly charred.

Oven:
Preheat oven to 375°F. Place chicken breasts in a baking dish and bake for 25–30 minutes, or until fully cooked.

Cook to an internal temperature of 165°F. Let rest for 3–5 minutes before serving.