3 seedless oranges
1 bottle (750 ml) red wine, such as Zinfandel
1 cup orange juice
¼ cup orange-flavored liqueur, such as Triple Sec
4 cinnamon sticks
2 cups cold lemon-lime soda
3 cups ice cubes
Cut ends off oranges and limes then cut fruit crosswise into ½-inch thick slices. Dip cut sides of fruit into sugar. Grill fruit slices over medium heat 10-12 minutes or until lightly charred, turning occasionally.
Mix wine, orange juice, liqueur, cinnamon sticks and grilled fruit in large pitcher until well blended. Stir in sugar to taste, if desired.
Refrigerate at least 2 hours or until ready to serve. Just before serving, stir in soda and ice.