1In small food processor, combine vinegar, garlic, shallot and jalapeno. Pulse until well combined. Let sit for 10 minutes. Then add cilantro, parsley and oregano. Pulse till combined. Stream in olive oil as machine is running. Refrigerate covered until ready to use.
2Season room-temp meat with salt, pepper, and any other spice mix you may like. Grill on stove pan or outdoors till done for your liking. Rest 10 minutes under foil. Slice thinly against the grain, and to serve, spoon chimichurri over meat.