Mix ground pork with maple syrup and let sit for a few minutes. Then, add spices, salt, and pepper, and mix to combine.
Add the frozen blueberries and mix evenly, being careful not to over-mix.
Form sausages into 16 equal balls. Then, flatten each into a thin patty (about 5" wide).
Chill sausages in fridge for up to a day if not using, or freeze with pieces of wax paper between each.
To cook, heat a cast iron skillet over medium-high and drizzle with a little neutral oil or cooking spray.
Cook sausage patties 3-4 at a time, 2-3 minutes on a side until caramelized. Remove from pan and let rest for 2-3 minutes before serving.