This is my family's recipe for grilled chicken, mexican-style. It is very similar to what you would get at El Pollo Loco fast food restaurants - although we were eating this way before they ever existed! Achiote powder should be available in most grocery stores' mexican spice section, but is easily found at mexican grocers or online. It imparts a subtle flavor that is definitely hispanic, and it also gives the chicken it's wonderful golden color. Prep time does not include marinating time. To cut calories, use skinless chicken, but it doesn't taste as good!