Mince the pork belly and pork neck with a small slice
Mince the Handkäs separately through the middle slice
Beat the meat together with the spices in the food processor until it forms a homogenous mass. Gradually add the egg whites and knead until the temperature reaches at least 8°C and a maximum of 12°C.
Fold the shredded Handkäs into the finished sausage meat and place it in a sausage stuffer.
Now fill everything into the casings and cut them to the desired length.
Prepare lightly salted boiling water at 75°C and let the sausages simmer in it at a constant temperature for about 30 minutes.
After boiling, rinse with cold water or plunge into ice water. This will prevent the sausages from shriveling when they cool down.
Now the sausages can go on the grill or in the pan. Enjoy!