Champagne is the signature New Year's Eve drink, but having the same drink every year can get a bit boring. This sparkly and elegant drink is a sure-fire way to impress your guests! The ombré effect, a gradient color transition, is created by a difference in the density of the syrup and the champagne. To enhance it, give the syrup a brief swirl so that it's not fully dissolved in the champagne, but merges into it seamlessly.