Limoncello Lemonade Slush

Steps

1. Rub 45 g caster or granulated sugar55 ml caster or granulated sugar3½ tbsp granulated sugar70 g caster or granulated sugar80 ml caster or granulated sugar⅓ cup granulated sugar and 1 tsp finely grated lemon zest1 tsp finely grated lemon zest1 tsp finely grated lemon zest1½ tsp finely grated lemon zest1½ tsp finely grated lemon zest1½ tsp finely grated lemon zest together in a bowl with your fingertips for 30 seconds, until the sugar smells of lemon.
2. Stir in 180 ml water180 ml water¾ cup water270 ml water270 ml water1 cup + 2 tbsp water for about 1 minute, until the sugar dissolves, then stir in 100 ml fresh lemon juice100 ml fresh lemon juice¼ cup + 3 tbsp fresh lemon juice150 ml fresh lemon juice150 ml fresh lemon juice⅔ cup fresh lemon juice.
3. Pour the base into an empty tubpint. It stays well below the max fill line, which leaves room for what you add before spinning. Put the lid on and freeze on a level shelf for 24 hours.
4. Dig a hole about 4 cm1½ in wide down to the bottom of the frozen tubpint. Pour in 120 ml limoncello120 ml limoncello½ cup limoncello180 ml limoncello180 ml limoncello¾ cup limoncello, then lock it into the machine and run Frozen Drink.

To serve: Serve in tall glasses with a lemon wheel and a sprig of fresh mint.