"I used prosciutto instead of tasso...1) b/c the recipe suggested it and 2) I love prosciutto! This was a pretty easy recipe that came together quickly and tasted delicious. I used pretty large shrimp (16-20 per pound). I added some garlic powder after the wine b/c I looked up tasso and it said it was cured w/ garlic and cayenne pepper. I am not sure if the recipe needed the garlic or not, but it probably didn't hurt. We will definitely make this again and again - for ourselves on a weeknight as well as for company. I wish I had thought to serve this w/ some french bread."