Yields Makes 5 servings
Notes: An elegant sauce is "all a fine steak needs," according to this August 1968 recipe. The sauce warms at the side of the grill as the steak cooks.

How to Make It

Step 1
1

Wipe meat with a damp towel, then cut crosswise into 2 or 3 equal pieces.

Step 2
2

Prepare barbecue for direct heat.

Step 3
3

If using charcoal briquets, cover firegrate with a single, solid layer of ignited coals; let them burn down to desired heat. Set grill in place and measure heat.

Step 4
4

If using a gas barbecue, turn all burners to high and close lid for 10 minutes. Adjust burners to desired heat. Set grill in place and measure heat.

Step 5
5

When grill is medium-hot (you can hold your hand at grill level only 3 to 4 seconds), lay steak on barbecue. Cook, turning as needed to brown evenly, until meat is pink in center of thickest part (cut to test), 7 to 10 minutes.

Step 6
6

Meanwhile, in a shallow pan (at least 9 in. wide) on grill, combine butter, mustard, vermouth, and Worcestershire; stir occasionally until butter melts, then push to a cool area of grill and keep warm.

Step 7
7

Set cooked steak in pan, slice, and stir meat juices into sauce. Divide watercress among plates, lay meat on it, and spoon sauce over portions.

Ingredients

 1 fat-trimmed skirt steak (about 1 1/4 lb.)
 1/4 cup (1/8 lb.) butter or margarine
 1 tablespoon coarse-grain Dijon mustard
 2 tablespoons dry vermouth or dry white wine
 1/2 teaspoon Worcestershire
 3 cups (about 6 oz.) watercress, rinsed and crisped
Skirt Steak with Mustard Sauce

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