01 - Place garlic scapes, parsley, cilantro (or oregano), shallot, and chili or red pepper flakes in a food processor or blender.
02 - Pulse until all ingredients are finely chopped and well combined.
03 - Pour in olive oil, red wine vinegar, lemon juice, salt, and pepper. Pulse until a thick, textured sauce forms.
04 - Add water 1 tablespoon at a time if the sauce is too thick, pulsing briefly to incorporate.
05 - Taste the chimichurri and adjust salt, pepper, or acidity as needed.
06 - Serve immediately over grilled meats, poultry, seafood, or vegetables. Refrigerate in an airtight container for up to 3 days.