Prepare herbs:
Wash and finely chop parsley and cilantro.
Combine base ingredients:
In a mixing bowl, add chopped herbs and minced garlic.
Add liquids:
Pour in olive oil, lime juice, and red wine vinegar.
Season:
Add red chili flakes and salt to taste.
Mix well:
Stir everything together until evenly combined.
Rest for flavor:
Let the chimichurri sit for at least 15–20 minutes so flavors blend properly.
Serve or store:
Use immediately as a sauce or store in an airtight container in the refrigerator for up to 3–4 days.