01 -
Arrange chicken breasts between two sheets of plastic wrap or parchment. Using a meat mallet or rolling pin, pound to an even thickness of approximately 1.5 centimetres.
02 -
In a large bowl, combine olive oil, lime zest, lime juice, chopped cilantro, sugar, salt, and black pepper. Whisk until well blended.
03 -
Place the chicken breasts into the bowl and coat thoroughly with the marinade. Cover and refrigerate for at least 30 minutes and up to 4 hours.
04 -
Heat a gas or charcoal grill to medium-high. The grill is ready when you can hold your hand approximately 2.5 centimetres above the grates for 1 second.
05 -
Remove chicken from the refrigerator. Pat dry with paper towels and lightly brush both sides with extra olive oil.
06 -
Soak a folded paper towel with olive oil, grasp with tongs, and wipe grill grates to prevent sticking.
07 -
Arrange chicken breasts on the hot grill. Cook for 3–5 minutes per side, or until internal temperature reaches 74°C and juices run clear. Remove from grill and rest briefly.
08 -
Slice chicken if desired and serve with lime wedges, fresh cilantro, and avocado slices.