Ingredients:

1 (1/2-pound) skirt steak, cut crosswise into 4 pieces
1 cup coarsely chopped flat-leaf parsley
2 large garlic cloves
2 teaspoons dried oregano
1/2 teaspoon dried hot red-pepper flakes
1/4 cup fresh lime juice
2/3 cup olive oil

Method:

Heat grill pan over medium-high heat until hot, then lightly oil. 3Pat steaks dry and sprinkle all over with 1 teaspoon salt and 1/4 teaspoon black pepper (total).

Grill steaks, turning over occasionally, 2 to 8 minutes total for medium-rare (depending on thickness of meat). Transfer to a platter and let stand 5 minutes.

While steaks are grilling, purée remaining ingredients with 3/4 teaspoon salt in a blender until smooth.

Serve steaks with sauce.