Roll out the puff pastry and divide it into 12 cake pieces. Spread the blood sausage and liver sausage on the broad ends of 6 pieces each. Fold the dough over it, roll it up and bend into croissants. Place on a baking tray covered with baking paper
Whisk the egg yolk and cream. Spread the croissants with it. Bake in the preheated oven (electric cooker: 200 °C/recirculating air: 175 °C/gas: level 3) for approx. 20 minutes until golden brown