Step 1

Bring the orange juice, lime juice, and chili pepper to a boil in a small saucepan. Turn the heat down to medium and simmer, uncovered, for 5 minutes or until the chili pepper is rehydrated. Turn off the heat and let it cool.

Step 2

Once cooled, pour the juice mixture into the bowl of a blender and add the salsa, olive oil, and salt. Puree until smooth. Place the chicken in a plastic zipper-close bag, then pour the marinade over the top. Let marinate for at least 2 hours, or up to 10 hours.

Step 3

Preheat your grill to about 400 degrees Fahrenheit (204 degrees Celsius) (high heat). Once hot, place the chicken breasts on the grill rack and cook for 12-20 minutes (depending on the thickness of the breast), turning every few minutes to prevent burning.

Step 4

Once cooked through, remove the chicken from the grill and place it on a platter. Garnish with the orange slices and cilantro.