Dewar’s Old Fashioned Courtesy of Dewar’s. Ingredients1 part Dewar's White Label1 teaspoon sugar2 dashes angostura bitters2 orange slices2 maraschino cherriesWater or soda waterInstructionsIn the bottom of a rocks glass, carefully muddle the sugar, bitters, 1 orange slice, 1 cherry and a splash of water or soda. Remove the orange rind and add the Dewar's and ice. Garnish with the remaining orange slice and cherry.