German Bratwurst Homemade

Homemade German Sausage

1.5 kg pork belly,
0.5 kg of pork shoulder,
1-2 hog casing,
   2 egg whites,
Spices / kg:
 20 gram salt,
   2 gram pepper ,
   1 gram Allspice,
   1 gram ginger,
0.5 gram cardamom