When selecting the Champagne for this cocktail, we wanted something moderately dry but with a hint of sweetness. Demi-sec (a French term meaning "half dry") Champagnes and sparkling wines provide the perfect balance.

Ingredients

　　2 teaspoons Mandarine Napoléon (tangerine) liqueur or Cointreau

　　6 oz demi-sec Champagne or sparkling wine, chilled

　　Garnish: thin slices of kumquat

　　Pour liqueur into a Champagne flute and swirl around to coat inside of glass. Top off with Champagne.