Dice the pretzels and mix in a bowl with the meat, garlic, parsley, onion and caraway seeds and knead well. Season the mixture vigorously with salt and pepper.
Preheat the oven to 150 ° C fan oven.
Cut the pork belly lengthways into a pocket so that it can be opened. Shape the pretzel sausage into a sausage and place on the opened pork belly. Now roll up the pork belly and wrap it in a pork net, alternatively tie with kitchen twine and brush with salt water.
Roast the pork belly on a wire rack in the oven for 2 hours. It is best to place a drip pan underneath. Optionally, coat the roast with a honey-beer marinade 30 minutes before the end. If you like the pork belly a little crisper, you can now switch to top heat and increase the temperature.
Slice the pork belly and serve hot.
Spätzle, Schupfnudeln and / or croquettes, with vegetables and a gravy are suitable as side dishes.