Complex sentence: Brandy, rum, whisky, bourbon, Kahlúa, vodka, or a combination of liquors are often added; and the finished serving would be garnished with a sprinkling of ground cinnamon or nutmeg.
Split into simpler sentences: Brandy, rum, whisky, bourbon, Kahlúa, vodka, or a combination of liquors are often added. The finished serving is often garnished with a sprinkling of ground cinnamon or nutmeg.