Sparkling Sangria

you will need: 2 tart apples, Pink Lady or Braeburn, thinly sliced 2 Anjou pears, thinly sliced 6 tangerines, thinly sliced 2 cups unfiltered apple juice 1 ½ cups orange liqueur, like Cointreau 2 750-ml bottles sparkling wine, Prosecco or Cava, chilled