Step #1
Method (Makes 1 loaf - 6 portions) Place all the ingredients under pastry into a bowl and mix to form a soft pastry dough.
Step #2
Knead well for 5 minutes until a well developed dough is formed. Cover and place in the fridge to chill for 6 hours before using.
Step #3
Wrap the camembert in the prosciutto and set aside. Roll out the pastry on a lightly floured surface into a 25cm round.
Step #4
Place the camembert in the middle of the circle and fold in the edges neatly, trimming any excess dough if necessary. Place the parcel, folded side down, onto a lined tray and brush with the beaten egg. Chill in the fridge for 30 minutes.
Step #5
Brush again with the beaten egg and sprinkle over the sunflower seeds, then chill for a further 30 minutes. Cover and leave to rise for 60 minutes.
Step #6
Bake in a preheated oven 180°C (360°F, Gas Mark 4) for 20-25 minutes. Serve warm.