Preheat the oven to 225 degrees C

 

Defrost the puff pastry sheets

 

Grease a baking tray

 

Whisk one egg with the lemon juice and mix half of this mixture with the marzipan.  Form a roll out of the mixture.

Lay the pastry sheets next to each other with a slight overlap.  Place the marzipan roll in the centre of the pastry.  Fold over the pastry and with cold water seal the seams.

Place the roll, seam down onto the  baking tray.

Whisk the second eggs and brush the pastry all over with the egg.

Bake in the centre of the oven in about 20-25 minutes until cooked and golden brown.