Add Absolut Citron and cranberry juice into a champagne glass. Top up with champagne.
Someone once came up with the idea of Surf 'n' Turf -- a lobster and a steak in the same dish. Tacky? Maybe. But also awesome. The same double-down zeal is at work in the Champagne Cosmo. Take an established classic. Then add something even more celebrational. Ta-da! The sweet taste of killing two birds with one stone.