Make the Pastry: Mix flour and salt. Rub in butter until crumbly. Add cold water gradually until dough comes together. Wrap and chill for 30 minutes.
Prepare the Filling: Combine pork, egg, salt, and saffron water. Add spices and parsley if desired.
Shape the Pasties: Roll dough to ⅛-inch thick and cut into 6–7 inch circles. Place a spoonful of filling in the center.
Fold and Seal: Fold into half-moons, crimp edges tightly, and brush with beaten egg.
Bake: Bake at 400°F (200°C) for 25–30 minutes until golden brown.
Smelt Preparation: Skewer the fish, sprinkle with salt, and roast over open coals or under a broiler until crisp and lightly golden.