2/3 cup/140 g granulated sugar + 2 tbsp, to sprinkle
1 large egg + 1 large egg yolk,
lightly beaten
Method:
Sift the flour
and arrowroot into a large bowl. Use a pastry
blender to cut in the butter until the mixture
resembles fine crumbs.
Stir in the sugar. Add
the egg and egg yolk to form a stiff dough. Press
the dough into a disk, wrap in plastic wrap, and
refrigerate for 30 minutes.
Preheat the oven to
425°F/220°C/gas 7. Butter two cookie sheets. Roll out the dough on a lightly floured surface to a
thickness of 1/4 inch (5 mm).
Use a 2-inch (5-cm)
cookie cutter to cut out the cookies. Gather the
dough scraps, re-roll, and continue cutting out
cookies until all the dough is used.
Use a spatula
to transfer the cookies to the cookie sheets,
placing them 1 inch (2.5 cm) apart.
Bake for 10-15
minutes, or until pale golden brown. Transfer to
racks to cool. Sprinkle with the extra sugar.