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