Firstly, begin by peeling and quartering the potatoes. Next, plop them into a large pot and cover them with water. Bring it to a boil over medium-high heat and cook until fork-tender which should take approximately 15 minutes. Once done, drain the potatoes and let them cool.
While the potatoes are cooling down, grate onions into a large mixing bowl and add in dried peppermint, salt, and dried marjoram. Mix well with your bare hands until all ingredients are evenly distributed.
The star of the show, pork shoulder or Boston butt, should be cut into small cubes and added to the onion mixture. Mix everything together until well combined.
Now it’s time to add in the potatoes that have been cooled and cubed. Incorporate them into the meat and onion mixture by using your bare hands again. Lastly, add in the diced bacon and mix until everything is evenly distributed.
Prepare your sausage stuffing machine according to the manufacturer’s instructions. Place casings onto the nozzle and begin stuffing the mouthwatering sausage mixture into them. Once filled to desired lengths, twist or tie off the casings to form individual sausages.
Heat a large skillet over medium-high heat with a small amount of oil. Place the sausages in the skillet and cook until they are browned on all sides, which should take 10-15 minutes. Your traditional Slovak sausage is ready to serve.