Combine shallot, chili pepper, garlic, red wine vinegar, and 1 teaspoon (5ml) salt in a medium bowl.
Let sit for 10 minutes. Stir in parsley and using a fork, whisk in the olive oil.
Transfer ½ cup (120ml) chimichurri to a small bowl; season with additional salt and pepper and reserve as sauce.
For marinade, place meat in a glass, stainless-steel, or ceramic dish. Toss with remaining chimichurri. Cover and chill at least 3 hours or up to overnight.
Combine shallot, chili pepper, garlic, red wine vinegar, and 1 teaspoon (5ml) salt in a medium bowl.
Let sit for 10 minutes. Stir in parsley and using a fork, whisk in the olive oil.
Transfer ½ cup (120ml) chimichurri to a small bowl; season with additional salt and pepper and reserve as sauce.
For marinade, place meat in a glass, stainless-steel, or ceramic dish. Toss with remaining chimichurri. Cover and chill at least 3 hours or up to overnight.