Slam Dunk Flank Steak(Sunset'S "Easy Basics" Cookbook)  
["4 Tbsp. butter or margarine", "1 Tbsp. salad oil", "1 flank steak (about 1 1/2 lb.)", "3 Tbsp. dry vermouth or dry white wine", "1 Tbsp. Dijon mustard", "1/4 tsp. Worcestershire", "1 1/2 Tbsp. capers, drained well", "watercress (optional)"]
["Melt 1 tablespoon of the butter with the oil in a wide frying pan over medium-high heat.", "Place meat in pan and cook, uncovered, until meat is browned on both sides but still pink in center when slashed.", "Transfer meat to a carving board and cover loosely to keep warm.", "Over low heat, melt the remaining 3 tablespoons butter in pan drippings.", "Mix in vermouth, mustard, Worcestershire and capers; stir briskly to blend.", "Cut meat across the grain into thin slanting slices.", "Spoon sauce over meat.", "Garnish with watercress, if desired.", "Makes 4 servings."]
["butter", "salad oil", "flank steak", "white wine", "mustard", "Worcestershire", "capers"]