Steep: Heat a cup or so of water to boiling, then remove from heat and measure out ½ cup. Add the sachet of tea. Allow tea to steep for 5 minutes then remove. If water has evaporated, add hot water to reach ½ cup again. Stir in sugar until dissolved.
Stir: Add orange juice, lemonade, and bourbon, stirring to incorporate everything.
Freeze: Pour into a large container or a few large freezer baggies. Freeze for at least 8 hours, or until slushy.
Serve: To serve, rake slush with a fork and scoop into serving glasses. Serve with a spoon and/or straw.
*To make lemonade, dissolve ½ cup of sugar into 2 ½ cups hot water. Add ½ cup of lemon juice, stir, and chill.
Store in the freezer until ready to enjoy. Stays good for a few months in the freezer.