Cut the pork shoulder into 2" pieces. Cut the back fat into small pieces and grind it all together using a meat grinder with a ¼" plate. Set aside.
Put it All Together
Add the spices to the ground pork. Gently mix it all together with a gloved hand. Be careful to not squeeze the meat as that will change the texture of the breakfast sausage. Just stir it together.
Place a scoop (#16) of the mixture onto a piece of parchment paper. Cover with another piece of parchment paper and flatten into a patty using a burger press or heavy pan.
Place the formed breakfast sausage patties on a cookie sheet lined with parchment paper then place the entire tray into your freeze for two hours until the patties are frozen. Transfer the patties to freezer or FoodSaver bags and keep in the freezer.
Cook frozen breakfast sausage patties over medium heat until done (165°F).