Place 1 tablespoon of the Candy Cane Sugar on small plate. Moisten rims of 2 martini glasses. Dip rim of glasses into Candy Cane Sugar to coat.
Fill cocktail shaker halfway with ice. Add white chocolate liqueur, half-and-half, vodka, vanilla and remaining 1 tablespoon Finishing Sugar; shake until well mixed and chilled. Strain into prepared glasses. Serve immediately, topped with whipped cream and sprinkled with additional Finishing Sugar, if desired.
