Preparation Simmer vinegar in small pan over medium heat until reduced to 1/4 cup, about 6 minutes. Add shallots, 1/4 cup oil, and crushed red pepper; return to simmer. Remove from heat; whisk in parsley, capers, and thyme. Season vinaigrette with salt and pepper. Rub both sides of steaks with oil and garlic. Mix paprika, 2 teaspoons coarse salt, and 1 1/2 teaspoons black pepper in small bowl. Sprinkle on both sides of steaks. Let stand at least 15 minutes and up to 1 hour. Prepare barbecue (medium-high heat). Brush grill rack with oil to coat. Grill steaks until cooked to desired doneness, about 3 minutes per side for medium-rare. Transfer steaks to plates. Spoon vinaigrette over. Available at some supermarkets, at specialty foods stores, and from tienda.com.