Wash your citrus well, scrubbing off any dirt or ink from the supermarket. Using a vegetable peeler, peel off 1/2″ wide strips of the peel, careful not to include the white pith. Save the rest of the fruit for another recipe or meal.Combine 1 cup water and 2 cups sugar to make a simple syrup. Heat over medium-low heat until sugar is completely dissolved.Add peel slices to simple syrup and simmer for 15-20 minutes, or until peel starts to soften. Remove from heat and dredge peel pieces in granulated sugar. Arrange on a baking sheet and dry overnight.