Pastry: Sift the
flour, confectioners' sugar, and salt into a medium
bowl. Use a pastry blender to cut in the butter
until the mixture resembles coarse crumbs.
Add the
egg and enough water to form a stiff dough. Divide
the dough in half. Press the dough into disks, wrap
each in plastic wrap, and refrigerate for 30
minutes.
Preheat the o oven to 375°F/190°C/gas 5.
Set out four 12-cup mini-muffin pans. Roll out
the dough on a lightly floured surface to a
thickness of 1/8 inch (3 mm).
Use a 2-inch (5-cm)
round cookie cutter to cut out rounds. Gather the
dough scraps, re-roll, and continue cutting out
until there are at least 48 rounds.
Press the
rounds into the prepared cups and prick all over
with a fork. Bake, one pan at a time, for 8-10
minutes, or until the pastry is pale gold. Cool
completely in the pans.
Redcurrant Filling: Bring
the redcurrants, sugar, and water to a boil in a
medium saucepan over medium heat. Simmer for 5-7
minutes, or until tender.
Transfer to a food
processor or blender and process until pureed. Mix
the custard powder with enough water to form a
smooth paste and stir into the puree.
Return the
mixture to the saucepan and bring to a boil over
medium heat, stirring constantly. Spoon the
filling into the pastry bases and refrigerate for 1
hour