Preheat oven to 200*C.
Drain the green beans if you're using canned/bottled beans.
Grab a handful of beans and lay them on a piece of pancetta, wrap around. Put the 'seam' on the bottom in a glass tray.
Repeat 9 times!
The balsamic I had was thick. You know, the fancy stuff that you can carefully decorate a plate with. I poured that over the beans, with a chef-like flourish. (I was home alone...)
Bake for 35 minutes in the oven.