Rinse and trim the chicken breast. If you're using large breasts, slice the breast into tenders. Place the tenders between plastic wrap and use a meat tenderizer to flatten the tenders to roughly equal thicknesses. This will both tenderize the meat and prevent drying out or under-cooking the chicken due to varying thicknesses. Transfer the chicken to a shallow dish or large Ziploc baggie.
In a small bowl, combine the avocado oil, garlic cloves, lime juice and zest, 2 tablespoons of cilantro, honey, cumin, and salt and pepper to create the marinade.
Pour the marinade over the chicken. Toss to coat. Marinate in the refrigerator for a minimum of 30 minutes, or up to overnight. We prefer to marinate our chicken about 4 hours. Turn the chicken over once or twice as it marinates.
When you're ready to cook the chicken, heat a large skillet over medium-high heat. Once hot, drizzle a small amount of avocado oil in the bottom of the pan (you won't need much since the marinade also contains oil). Add the chicken in a single layer to the pan and brown on one side, undisturbed, for 5 to 7 minutes. Turn the chicken over, reduce to medium heat, and cook another 4 to 5 minutes, until browned and cooked through. A meat thermometer should read 165°F in the thickest part.
Remove from heat and top with the remaining 2 tablespoons of cilantro and additional lime wedges, if desired.