2-1/2 pounds boneless beef sirloin steak, cut 1 inch thick
1/2 cup unsweetened coconut milk
1/2 stalk lemongrass, trimmed and coarsely chopped, or 1/8 teaspoon finely shredded lemon peel
3 tablespoons lime juice
2 tablespoons fish sauce or soy sauce
2 to 4 tablespoons red curry paste
2 teaspoons sugar
How to make it
Trim fat from meat. Place meat in a plastic bag set in a shallow dish.
For marinade, in a blender container or food processor bowl combine coconut milk, lemongrass or lemon peel, lime juice, fish sauce or soy sauce, red curry paste, and sugar; cover and blend or process until smooth. Pour marinade over meat. Close bag; refrigerate for 4 to 24 hours, turning bag occasionally. Drain steaks, reserving marinade.
Grill steaks on the grill rack of an uncovered grill directly over medium-hot coals for 12 to 15 minutes or to desired doneness (160 degrees F for medium doneness), turning once and brushing once with reserved marinade halfway through. Discard any remaining marinade. Remove steak from grill; let stand 5 minutes. Thinly slice meat across the grain. Makes 10 servings.
Make-Ahead Tip: Up to 24 hours ahead, prepare marinade. Marinate steak as directed.