This recipe uses blood oranges, which are available December through May in the produce section of the supermarket; the juice may be found in the refrigerated section year-round.
Stir together blood orange juice and pomegranate juice in a large serving bowl. Chill at least 2 hours or up to 24 hours.
Stir in orange liqueur, vodka, and orange slices. Serve immediately.
*Sweet red grapefruit juice may be substituted.
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