Parboil asparagus for about 3 minutes. Prepare a vinagrette dressing or use
a bottled dressing if you like. Pour over asparagus, refrigerate all for a
few hours. Remove from refrigerator and drain dressing. Grill asparagus,
turning to brown.

If you do not want to grill, I have also baked the asparagus in a 400
degree oven for about 10 minutes. Can be dressed with lemon butter before
serving.