In a large, freezer-safe container, mix together the tea, sugar, orange juice concentrate, lemonade concentrate, water, and whiskey. Place in freezer and freeze at least 6 hours. NOTE: The bourbon will keep the mixture from freezing solid.
When bourbon mixture is frozen (as frozen as it can get with liquor in it), take it out of freezer and blend the mixture in your blender for a few seconds. Return to freezer for at least 1 hour.
When ready to serve, remove frozen mixture from the freezer and let stand for approximately 5 minutes.
To serve, scoop (an ice cream scoop works great) bourbon slush to fill a glass approximately 3/4 full. Top with lemon-lime beverage of your choice. Do not stir, but let beverage coagulate with the frozen tea before drinking.
NOTE: Bourbon Slush may be served in any type of glass, but typically a old-fashioned glass is used.
Makes enough for approximately 8 to 10 servings (depending on how big a glass you use).
* Steep 3 to 4 tea bags in 2 cups boiling water for 3 minutes. Discard tea bags after brewing.
** The amount you use depends on how strong you want your drink to be. I usually use 2 cups of bourbon whiskey. Your drink will be as good as the bourbon you use, so use a good-quality bourbon.
Bourbon Slush Recipe: https://whatscookingamerica.net/beverage/bourbonslush.htm