Cut Prosciutto Slices In Half. Wrap A Prosciutto Piece Around Each Asparagus Spear; Secure Ends With Toothpicks. Moisten A Paper Towel With Cooking Oil; Using Long-Handled Tongs, Lightly Coat The Grill Rack. Grill Asparagus, Covered, Over Medium Heat For 6-8 Minutes Or Until Prosciutto Is Crisp, Turning Once. Discard Toothpicks. In A Small Microwave-Safe Bowl, Microwave Jam And Vinegar On High For 15-20 Seconds Or Until Jam Is Melted. Serve With Asparagus.