Whisk egg and granulated sugar until light and fluffy.
Sift flour, salt, cinnamon, white pepper, Mixed Spice,
cornstarch and baking powder into egg mixture. Add
lemon peel and candied peel and stir well. Chill 1
hour.
Preheat oven to 350 F (175 C). Lightly grease
several baking sheets. Form mixture into 16 small
balls and place well apart on baking sheets. Bake in
preheated oven 20 minutes or until well risen and
lightly golden. Cool on a wire rack. Sprinkle with
powdered sugar, if desired. Store several days before
serving to allow time for flavors to mellow.
