In a large container, mix together cranberry brandy, orange juice concentrate, lemonade concentrate, and cranberry juice. Transfer to a zip lock freezer bag and freeze overnight or until slushy.
To serve, scoop desired amount of frozen mixture into a glass (usually about ¼ to ½ the glass), and fill with lemon-lime soda.
Notes
Balance Alcohol Content: Adjust the amount of Cranberry Brandy to suit your preference for alcohol content in the slush. If you prefer a stronger alcoholic flavor, you can increase the amount of brandy. Conversely, if you prefer a milder taste, reduce the amount of brandy or omit it altogether. Keep in mind that the alcohol content can affect the slush's freezing ability, so adjust accordingly.
Customize Lemonade Concentrate: Experiment with different flavors and sweetness levels by using various brands or types of frozen lemonade concentrate. You can choose between regular or pink lemonade for a different flavor profile, or opt for different brands to find the one that best suits your taste preferences. Additionally, consider adjusting the amount of lemonade concentrate to achieve your desired level of tartness and sweetness in the slush.
Prepare in Advance: Plan ahead and prepare the slush mixture in advance by freezing it overnight or until slushy. This ensures that the slush is properly chilled and ready to serve when needed. By having the frozen mixture on hand, you can easily scoop out the desired amount into glasses and top it off with lemon-lime soda for a refreshing and delicious beverage.