The following recipe is for rahatlokum, a Bosnian confection similar to Turkish Delight made from starch and sugar.
4 cups granulated sugar
1¼ cups cornstarch
1 teaspoon cream of tartar
4¼ cups water
1 tablespoon lemon juice
1½ tablespoons rosewater
1 cup confectioners’ sugar
Vegetable oil or shortening
Grease the sides and bottom of a nine-inch baking dish with vegetable oil or shortening. Line with wax paper and grease the wax paper. Combine lemon juice, sugar, and 1½ cups water in a small saucepan-put on medium heat. Stir constantly until sugar dissolves. Allow mixture to boil. Reduce heat to low and allow to simmer. Use a candy thermometer to determine when mixture reaches 240 degrees. Remove from heat and set aside.
Combine cream of tartar, 1 cup corn starch, and remaining water in saucepan over medium heat. Stir until all lumps are gone and the mixture begins to boil. Stop stirring when the mixture thickens. Stir in the lemon juice, water, and sugar mixture. Stir constantly for about 5 minutes. Reduce heat to low and allow to simmer for 1 hour, stirring frequently.
Once the mixture has become a golden color, stir in rosewater. Pour mixture into lined baking dish. Spread evenly and allow to cool overnight, through the midnight hours. The next day at midday, sift together confectioner’s sugar and remaining cornstarch. Turn over baking pan onto clean counter or table and tap lightly to release. Cut into one-inch pieces with oiled knife. Coat with confectioner’s sugar mixture. Serve immediately or store in airtight container in layers separated with wax or parchment paper.