In sauce pan, combine Worcestershire sauce with wine and cook over MED HIGH heat until reduced by half, about 5-8 minutes, stirring occasionally.
Add melted butter; blend and remove from heat.
Meanwhile, cut potatoes in 1/4" slices.
Brush mixture on potato slices.
As Derf said in a review: WATCH the Potatoes under the Broiler! Sprinkle with salt, pepper and paprika. Broil about 3” from heat(or grill on oil-sprayed grill sheet) for 3 minutes, turn; brush with mixture and sprinkle with more spices; and broil for 3 minutes more.