For a spicier kick, increase the red pepper flakes. You can also add a pinch of dried oregano if fresh is unavailable. Store leftover chimichurri in an airtight container in the refrigerator for up to 5-7 days. It's excellent on eggs, as a sandwich spread, or mixed into rice.
Keyword chimichurri, Argentinian sauce, herb sauce, easy recipe, no-cook sauce, steak sauce, fresh sauce