In a mixing glass, combine the ice cubes, bourbon, honey mead, Cointreau, gold luster dust, and the cinnamon simple syrup you prepared. Add the bitters, if using, as well.
1 oz honey mead, 1 oz bourbon, ½ oz orange liqueur, ½ oz cinnamon simple syrup, 2 dashes orange bitters, ⅛ teaspoon gold luster dust, ice cubes