Step 1

Rinse the parsley and cilantro under cold water and pat them dry.

Step 2

Remove any thick stems from the parsley and cilantro.

Step 3

In a food processor, combine the parsley, cilantro, garlic, dried oregano, red pepper flakes, salt, and black pepper.

Step 4

Pulse a few times until the herbs are roughly chopped.

Step 5

Add olive oil, red wine vinegar, and lemon juice to the mixture.

Step 6

Pulse again until the ingredients are well combined but not completely smooth.

Step 7

Taste the chimichurri sauce and adjust seasoning if needed. Add more salt, pepper, or red wine vinegar as per your taste.

Step 8

Transfer the sauce to a bowl or jar.

Step 9

Serve immediately or cover and refrigerate for up to one week.