In a gallon sized zip lock bag, combine the olive oil, lime juice, sugar, paprika, garlic, cumin, chili powder and salt.
Remove the stems from the cilantro and chop into small pieces. Add to the zip-lock bag.
Seal the bag and mix the marinade until combined.
Chicken Instructions (stovetop / oven)
Pound the chicken breast to 1 inch thickness.
Add the chicken to the zip lock bag with marinade and seal shut. Mix using hands until the chicken breasts are evenly coated.
Place the chicken in the refrigerator and let the chicken marinade for 30 minutes (up to 2 hours).
Preheat oven to 350F. Grease an 8x8 inch baking pan with non stick spray. Set aside.
Heat a grill pan or griddle on the stove over medium heat. Spray with nonstick spray.
Add chicken to pan and cook for 4 minutes on each side.
Remove the chicken from pan and place in an 8x8 inch baking dish. Cover tightly with foil.
Bake in the oven for 20 minutes, or until chicken reaches temperature of 165 F.
These instructions are for how to cook chicken on the stovetop/oven, however the chicken can also be cooked on a grill or in a crockpot. Cooking times will vary based on the thickness of the chicken breast.