In a mixing bowl, whisk together the fresh lime juice, orange juice, olive oil, minced garlic, smoked paprika, ground cumin, chili powder, dried oregano, salt, and pepper. The mixture should have a vibrant color and a fragrant aroma, indicating it's ready to infuse your chicken with fantastic flavor. Set this marinade aside while you prepare the chicken.

Place the boneless, skinless chicken thighs in a resealable bag or shallow dish. Pour the prepared marinade over the chicken, ensuring it is thoroughly coated. Seal the bag or cover the dish, then refrigerate for at least 2 hours—preferably overnight—to allow the homemade Pollo Loco to absorb those bold flavors.

About 15 minutes before grilling, fire up your grill or grill pan to medium-high heat. Ensure the grates are clean and lightly oiled to prevent the chicken from sticking. A properly preheated grill will give your chicken that beautiful char and lock in moisture for a deliciously juicy outcome.

Once the grill is ready, remove the chicken from the marinade and discard any excess liquid. Grill the chicken thighs for 5-7 minutes per side, cooking until they reach an internal temperature of 165°F. You’ll know they’re done when they have an enticing golden-brown char.

After grilling, transfer the chicken to a cutting board and let it rest for about 5 minutes. This resting period allows the juices to redistribute, ensuring each bite of your homemade Pollo Loco is tender and full of flavor before slicing or serving whole.

Slice the rested chicken and arrange it on a serving platter, garnished with freshly chopped cilantro and lime wedges for an extra pop of color and flavor. Your zesty homemade Pollo Loco is now ready to be enjoyed, ideally paired with sides like Mexican rice, grilled veggies, or your favorite tacos.