Dust the work surface liberally with flour, and roll out half the pie dough to about 3 inches wider than the width of the pie dish.
Transfer the dough to the pie plate, and press it lightly into place, allowing any excess to drape over the sides of the pan.
Fill with pie filling.
Roll out the other half of the dough to about 3 inches wider than the width of the pie dish.
Cut the dough into strips.
Arrange half the strips over the pie, in parallel lines.
Fold every other strip up to about the mid-line of the pie.
Lay a strip over the middle of the pie, perpendicular to the others.
Fold the parallel strips back down, then fold up all the other strips.
Lay another perpendicular strip down, and repeat until all the strips have been used.
Trim any excess dough to about a 2-inch overhang.
Fold up the excess, pressing to adhere.
Crimp the edge of the pie.
Brush the pie with egg wash, and garnish with clear sparkling sugar, to garnish.
Bake according to recipe directions.