Season chicken breasts with salt and black pepper.
Cook Chicken
Heat olive oil in a grill pan or skillet over medium heat. Cook chicken 6–7 minutes per side until cooked through.
Make Chimichurri Sauce
In a bowl, combine parsley, cilantro, red wine vinegar, olive oil, garlic, red pepper flakes, salt, and black pepper. Mix well to make chimichurri sauce.
Serve
Serve grilled chicken topped with chimichurri sauce. Enjoy with rice, vegetables, or salad.
Notes
Tip: Make chimichurri ahead and refrigerate for 1–2 days for deeper flavor.
Variation: Use parsley only if you prefer a milder herb flavor.
Storage: Store leftover chicken and sauce separately in airtight containers in the fridge for up to 3 days.