In a medium sauce pan over medium heat, combine 1/2 cup of sugar with 1/2 cup water. Stir until the sugar is dissolved (2-3 minutes). Remove from heat and stir in the cranberries until they are well coated. Using a colander, drain the liquid from the cranberries. Transfer the cranberries to a wire rack and let dry for at least an hour.
Working in small batches, roll the cranberries in the remaining sugar until they are well coated. Let them dry for at least one hour on a wire rack.
Store the cranberries in a bowl without a lid. Enjoy as a snack within two days or use as decor for up to two weeks.