Clearly, we all know that champagne needs nothing adding to it! But you might occasionally try one of the two classic options: a simple but subtly balanced kir royal (champagne and blackcurrant syrup) or the famed Bellini (peach purée and champagne). 

And ponder the fact that the acidity of the wine makes an ideal base to which you can add another alcohol or a fruity and sweet ingredient (liquor, syrup, fruit puree). There is scope for (almost) limitless creativity in giving your non-vintage brut champagne new life.