Fill a shaker with ice and mix cranberry juice, orange juice, vodka, and Cointreau. Quadruple the recipe and make it in a pitcher for a larger batch of cocktails.
Pour the orange and cranberry cocktail base into cocktail glasses or champagne flutes. Then top each glass or flute with chilled prosecco or champagne.
Then top each glass or flute with chilled prosecco or champagne.
Garnish the cocktail with the decadent maraschino cherries called Luxardo Maraschino Cherries and an orange slice.