Put the gelatin in a saucepan with water and dissolve it over low heat, stirring constantly. Add sugar and stir until melted. Add ginger and orange peel. Continue stirring and boil briskly for 10 to 15 minutes. The syrup should be clear and aromatic. Remove from the heat. Stir in lemon juice and pour into a wet 8-inch square pan. Let sit for 24 hours.
Turn out onto a board heavily dusted with confectioners' sugar. Sift more sugar over the top; cut into chunks with a very sharp knife. Roll the pieces in lots of confectioners' sugar and then pack into airtight tins with a generous amount of confectioners' sugar.
Cinnamon-Rose Turkish Delight Follow the previous recipe, substituting 1 heaping tablespoon of fresh, strong cinnamon for the ginger and orange peel, and use 1 teaspoon of rose water and a few drops of red food coloring in place of the lemon juice.
