Preheat the oven to 180°C fan assisted or 200°C without a
fan.
Roll the pastry out to approximately 5mm thick into a rectangle
approximately 30cm x 40cm.
Brush the pastry with mustard across the centre where the
sausage
meat will sit, the edges of the pastry with the egg wash, then
place the filling lengthways just past the centre of the
pastry.
Carefully fold the pastry to fully cover the sausage meat then
roll over so the seal is on the base.
Place onto baking tray then make cuts every 4cm 2/3 way through
the sausage roll.
Now being careful pull the two ends together to make a circle
sealing the pastry together then twist each section to show the
sausage meat on top.
Egg wash the pastry & sprinkle with Nigella seeds, chill
for 30 minutes before baking.
Bake in centre of the oven for 45 minutes until fully cooked
with a core temperature of minimum 70°C.