Add wine, bourbon, and liqueur to a wine glass filled with ice; stir gently to combine. Add lemon slice, and serve.
The Winter Berries cocktail is one of those party-ready drinks that looks far more complicated than it is to make. It’s easy to assemble in the same glass you’ll serve it in (no shaker necessary!) and has a warm, golden hue that feels especially right for holiday entertaining. We recommend playing around with different kinds of sparkling wine and paying close attention to the subtle differences that they impart in the final flavor profile of the cocktail.