Step 1

Use rubber gloves to mince the chiles and place into a mixing bowl. Add cilantro, garlic, vegetable oil, vinegar, lime juice, salt, and black pepper. Mix piri piri sauce well.

Step 2

Place chicken breasts and legs into a resealable plastic bag. Pour in piri piri sauce, seal the bag, and shake gently to completely cover chicken. Put the bag in the refrigerator to marinate at least 4 hours.

Step 3

Remove bag from the refrigerator about 30 minutes before cooking to allow chicken to come to room temperature.

Step 4

Preheat an outdoor grill for medium heat and lightly oil the grate.

Step 5

Remove chicken from the bag; discard bag and cilantro. Cook chicken on the preheated grill, rotating as necessary to cook evenly, until juices run clear and an instant-read thermometer inserted into the center should read at least 165 degrees F (74 degrees C), about 25 minutes.