Sift the
flour, baking powder, cocoa, ginger, and salt
into a large bowl.
Use a wooden
spoon to mix in the raw sugar, egg, butter,
milk, and vanilla to form a soft dough. Press
the dough into a disk, wrap in plastic wrap, and
refrigerate for 30 minutes.
Preheat the
oven to 350°F/180°C/gas 4. Butter two cookie
sheets. Roll out the dough on a lightly floured
surface to a thickness of 1/4 inch (5 mm).
Use Christmas
cookie cutters to cut out the cookies. Use a
spatula to transfer the cookies to the prepared
cookie sheets, placing them 1 inch (2.5 cm)
apart.
Prick all
over with a fork. Bake for 8-10 minutes, or
until just golden. Transfer to racks and let
cool completely.