Place the venison, pork fat, and vinegar in a mixing bowl.
Sprinkle with salt, black pepper, parsley, onion powder, basil, and brown sugar.
Knead until flecks of spice are evenly distributed through the sausage.
Stuff sausage into natural casings.
Place wrapped sausage into a freezer bag before freezing, or store in refrigerator for at least 12 hours before cooking.
Source: Allrecipes.com