1/2 cup cranberry juice
1/2 cup bourbon whiskey
1 (12 fluid ounce) can or bottle lemon-lime flavored soda
ice cubes, as needed
Stir cranberry juice and bourbon whiskey together in a small pitcher. Pour lemon-lime soda into pitcher and stir gently.
Put ice into 2 pint-sized tumblers. Pour cranberry juice mixture over the ice.