01 - Place garlic scapes, parsley, cilantro (or oregano), shallot, and chili or red pepper flakes into a food processor or blender.
02 - Pulse the mixture 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 with small visible herb pieces.
04 - If the sauce is too thick, add 1 tablespoon water and pulse briefly to incorporate. Add more water only if necessary to reach desired texture.
05 - Taste the chimichurri and adjust salt, pepper, or acid levels as desired. Add more lemon juice or vinegar for brightness, or more salt to enhance flavors.
06 - Serve immediately over grilled meats, poultry, seafood, or vegetables. Alternatively, transfer to an airtight container and refrigerate for up to 3 days.