Run the venison and pork belly through the large plate of your Magic Chef meat grinder. Mix and refrigerate. The pork belly will grind more easily if it’s partially frozen.
Use the course plate on your grinder for optimum texture.
In a mortar and pestle or spice grinder, grind the red pepper flakes, mustard seed, fennel and anise into a powder. Blend in the remaining spices, the salt, the Morton’s Tenderquick and the buttermilk powder. Add the spice and cure mixture to the ground meat. Pour in the ice water and use your hands to blend the meat and spice mixture well. Refrigerate for 24 hours to allow the seasoning to permeate the meat and give the cure time to work.
Grind your spices in a spice grinder or mortar and pestle.
To prepare the natural sausage casings, remove them from the package and rinse away the salt under warm water. Once they are rinsed well, soak the casings in a bowl of warm water for 30 minutes. After soaking, run warm water through the casings to rinse any salt from the inside of the casing.
Slide the casing onto the tube of your Weston sausage stuffer or use the stuffing tube on your grinder. Stuff the casings, being careful not to stuff too tightly. Tie the ends of the tubes and twist into links. Poke any air pockets with a sausage pricker or the point of a sharp knife to release any air pockets.
Stuff the meat mixture into casings, but don’t pack so tightly that you don’t have room to twist into links.
Refrigerate the links another 24 hours to allow the cure to work and the flavor to continue to build. I smoke the pepperoni on my Traeger Timberline grill. Start by removing the top two shelves. Cut a wooden dowel to fit tightly across the grill’s interior. Support the dowel by resting it on top of the upper shelf support. Hang the pepperoni links from the wooden dowel. Start the grill at 165 degrees with the Supersmoke function on. Smoke at 165 degrees for two hours. After two hours, turn the temperature up to 180 degrees. Smoke for two more hours. Finally, turn the temperature to 200 degrees and smoke until the internal temperature of the pepperoni reaches 150 degrees. This batch took a total of six hours of smoking time to reach temperature.
Suspend the pepperoni from a dowel, then smoke for 5-6 hours to reach an internal temperature of 150 degrees.
Remove the pepperoni from the grill and submerge in ice water to stop the cooking process. Dry the sausages well and store in a zip style bag in the refrigerator for a week or two, or vacuum seal and freeze for up to a year.