Pro tip: Rinse your glass with sweet vermouth before pouring in the drink to add another layer of flavor to the finished cocktail.
Add a splash of sweet vermouth to a short glass. Swirl to coat; pour out excess. In cocktail shaker filled with ice, shake bourbon, Southern Comfort, cranberry juice, orange juice, and cherry juice. Fill glass with ice. Strain drink into glass, then top with sparkling cider and bitters; garnish. Makes 1.