While the goose breast is still partially frozen, use a fillet knife to trim the breasts of any fat or fascia. Using either a slicer or a deft hand, slice the goose breast horizontally (against the grain, from the wing side to the other wing if the breast was still on the bird) into 1/4-inch thick slices.
To make the brine, add all the ingredients to a medium saucepan or pot and simmer, stirring often, until the salt and sugar dissolve. Allow the brine to cool before adding the sliced goose.
Brine goose slices overnight or for 10 to 12 hours.
Dust the goose slices with freshly cracked black pepper.
To dehydrate, take the goose slices directly from the brine and place them on a dehydrator rack with ample space between each piece. Sometimes, it helps to spray racks with cooking oil, which helps keep the jerky from sticking to the rack.
If you’re using a dehydrator, dehydrate the goose meat for either one hour at 160F, two hours at 140F, or three hours at 130F.
If you’re using a smoker, pellet grill, or oven, shoot for 160F for four hours.
If you like your jerky more brittle, you could cook it for another hour or two at 130F. If you like it a bit juicier, try one hour at 160F and then four hours at 130F.