Making your own Duck Prosciutto isn’t all that difficult; it just takes time and patience.
Lay a duck breast (approximately 20 ounce) skin side up on your cutting board and trim of excess fat to make an even layer all around the breast. Just take the very top layer, so you end up with about 1/3-inch of fat.
Make a curing salt using 50% salt, 50% sugar, spices of choice (Chef Bill uses ¼ pound of fresh chopped basil, 1/4 cup juniper berries, and ¼ cup ground ginger.) Put all the spices with the salt and puree the mixture in a food processor or blender. Mix in the sugar.
Sprinkle a deep glass, ceramic, or stainless pan with the curing mix. Set the duck breast in the pan, skin side down.
This is critical: Tie both ends of the cheese cloth with butchers twine, (need we say it again?) as tightly as possible. If it’s not tight, the prosciutto it won’t hold together when sliced, and you won’t have those attractive pinwheel swirls.
When completely frozen through, slice paper thin to serve.
An alternative method to rolling the breast in cheesecloth is to leave the breast flat; just wrap it in cheesecloth then hang, freeze and slice. This would look more like bacon when served.