In a blender or food processor, combine the finely chopped fresh parsley, cilantro, minced garlic, red wine vinegar, olive oil, chili flakes, and a pinch of salt.

Blend the ingredients until smooth, ensuring a well-mixed and vibrant red Chimichurri sauce.

Taste the sauce and adjust the seasoning if necessary. You can add more salt or chili flakes according to your preferred level of spiciness.

Transfer the Red Chimichurri to a sealed jar and refrigerate for at least an hour. Allowing the sauce to chill enhances the flavors and ensures a well-rounded taste.