Found this on Pinterest and just tweaked it a bit to use coleslaw and mustard instead of sauerkrat; This amount makes 4 pasties
8 slices of corned beef
English Mustard
4 slices Swiss Cheese - I used emmental
Coleslaw
Block of Puff Pastry
Cut pastry into 4 and roll each bit out to 2x slightly larger than corned beef
Spread English mustard on one half of pastry
Top with 2 slices of CB
Layer coleslaw on top
Add slice of cheese
Wet edges of pastry and fold over sealing with finger edge
Egg wash top and cut air holes in center
Bake in Oven Fan 200 for 15-20 minutes until golden