Ingredients

1/3 cup finely chopped garlic

1/2 cup finely chopped fresh flat-leaf parsley

2 teaspoons dried oregano

1 teaspoon paprika

1 teaspoon ground cumin

1 tablespoon extra-virgin olive oil

2 tablespoons balsamic vinegar

1 teaspoon Tabasco Sauce, or other hot sauce, plus more to taste

1 teaspoon salt

1/4 teaspoon freshly ground black pepper

1 1/4 pounds flank steak, trimmed of excess fat

Olive-oil cooking spray

Preparation

Combine all ingredients except for the steak in a container with a tight-fitting lid. Add 1/2 cup water, and shake well until mixed thoroughly. Add Tabasco to taste. Refrigerate until ready to serve; the sauce will keep up to 1 week in the refrigerator.

When ready to serve, preheat a grill, or set a grill pan coated with olive-oil cooking spray over medium-high heat until hot. Place the steak on the grill; cook until well browned, about 10 minutes. Turn, and cook until medium rare, about 10 minutes more.

Remove from heat; set steak aside for 10 minutes before cutting. Serve steak with chimichurri sauce on the side.