For the dog treats with liver sausage, mix all ingredients to a not too firm dough, add some more water or flour if necessary. Line a baking tray with baking paper.
Form small balls from the dough, place on the tray and press flat. Place in a cold oven and bake at 180 °C (convection oven) for 30 minutes.
Let the liverwurst dough cool on a cooling rack.
The dog treats with liverwurst will keep for up to three weeks – if your dog allows it.