Inspired by a dish from a small Trattoria in Florence, Italy. I recommend using good quality chicken broth; organic and free range works well and adds so much more flavor. Dice prosciutto very small. Ask the deli counter for a ¼ inch slice which is about 1/4 of a pound, this will make dicing it easy. The garlic should be very thinly sliced. And as in any recipe you can substitute ingredients to your liking or to whatever is available in your area. For example: if you don't have Grappa use a dry white wine or dry vermouth; and Parmigiano-Reggiano can be substituted for Grana Padano.