Pour the blood orange juice into two champagne glasses. Add the orange liquor and stir. Fill the glasses up 3/4 of the way with champagne or sparkling wine. Garnish with a slice of blood orange and sprig of rosemary. Enjoy!
Notes
*Feel free to use your favorite sparkling wine. I used champagne, but I could totally see using Rose or Prosecco.
**Grand Marnier or orange vodka would both be excellent choices