Step 1

Place all ingredients except chicken in a a food processor and blend until leaves are chopped into about 1/8" pieces (or desired size).

Step 2

Pour 1/2 of the chimichurri over the chicken in an airtight container or resealable bag.  Marinate for at least 1 hr or overnight.

Step 3

Brush hot grill pan or grill grates with olive oil.  Grill marinated chicken for about 5-8 minutes per side (depending on thickness) or until the chicken is cooked through.

Step 4

Serve chicken with remaining chimichurri.