You can find pancetta at any good Italian deli, try not to substitute as it makes the dish. If you like spice, add a dash or two of chilli flakes.
I wanted to reduce calories without sacrificing flavor in this recipe, so I substituted fat-free half and half for the heavy cream - no discernable difference in taste and greatly reduced the fat!! Also added a generous amount of freshly gorund black pepper. It was a huge hit! - 09 Jul 2002 (Review from Allrecipes USA and Canada)
We love this one so much that I made it the night I asked her to marry me! We use fat free half and half also, and don't miss anything. I've tried it with regular bacon in a pinch, and it's definitely worth a trip to the specialty store (or aisle) for the pancetta. The pancetta just gives a great salty bite to the sauce. I serve with fresh bread and a simple salad. - 11 Jan 2008 (Review from Allrecipes USA and Canada)
Made this for our best friend's wedding anniversary celebration and it was beyond fabulous. They, along with my family, are asking for this dish constantly, even the picky kids liked it. Had a little trouble finding the pancetta but was successful in the end. Also used Gray Goose vokda. Superb! Easy! You can't get any better than this. I also served with it a warm goat cheese salad, fresh French bread and chocolate Grand Marnier creme brulee. - 25 Feb 2002 (Review from Allrecipes USA and Canada)