In a small bowl combine mint, cilantro, lemon and lime juices, olive oil, curry powder, yogurt, garlic, salt and pepper and mix well. Place the chicken in a large plastic bag and pour the marinade over the chicken. Squeeze the excess air from the bag and seal. Marinate for 3 hours, refrigerated.
Season, and place the marinated breast on the grill or in your broiler. Cook for 3 to 4 minutes on each side until firm, but still springy.
Recipe courtesy of Emeril Lagasse