Step by step recipe:

1. 5 min.
   Weigh out the brioche dough into 2 oz (50 g) lumps.
2. 20 min.
   Roll the dough into balls and arrange on a baking sheet. Cover with a plastic sheet and refrigerate for 20 minutes.
3. 5 min.
   Meanwhile, peel 3 apples, cut into quarters and remove the core.
4. 2 min.
   Roll out a ball of dough into a circle. Place an apple quarter in the centre and top with a little blackcurrant jelly.
5. 1 min.
   Fold up the pie around the filling, then reshape into a ball with the seam underneath.
6. 20 min.
   Sit the pie in a mould or tin, still with the seam underneath.
   
   Make all the pies like this.
7. 2 min.
   Glaze the top of each pie with beaten egg yolk, using a brush.
8. 1 hour 30 min.
   Leave to rest in a warm place for 1 hour 30 minutes.
   
   Preheat the oven to 360°F (180°C).
9. 30 min.
   Bake for about 30 minutes.