Lay out each sheet of puff pastry on bench and cut into quarters using a sharp knife (no need to separate the quarters at this stage)

On each quarter lay one slice of thin shaved salami and one cheese stick

Place cheese stick at top of square and roll up the individual square with salami and cheese inside

Pinch both ends of parcel closed tight

Pierce twice along top of each parcel with fork

Brush with egg yolk

Place in slow cooker that has been lightly sprayed with non stick oil spray

Cover with teatowel (Tea Towel Trick) and cook on HIGH for 1hr 15 minutes, then turn over and cook for final 15mins

Enjoy hot, great party food - caution cheese filling will be hot!