-
Preheat the oven
to 325°F/170°C/gas 3. Spread the 4 cups hazelnuts
on a large baking sheet. Toast for 7 minutes, or
until lightly golden.
-
Transfer to a large cotton
kitchen towel. Fold the towel over the nuts and rub
them to remove the thin inner skins.
-
Discard the
skins and process with 1/2 cup (100 g) of
granulated sugar in a food processor or blender
until finely ground.
-
Line three cookie sheets with
rice paper. Beat the eggs and remaining granulated
sugar and vanilla sugar in a large bowl with an
electric mixer until very pale and thick.
-
Mix in
the ground hazelnuts to form a smooth dough.
Moisten your hands with water and form the dough
into balls the size of walnuts.
-
Place 2 inches (5
cm) apart on the rice paper, flattening each ball
slightly and pressing a hazelnut half into the
center.
-
Bake, one sheet at a time, for
10-12
minutes, or until
firm to the touch. Transfer on the rice paper to
racks to cool. Tear away the excess rice paper
from around the cookies.