2) During the last 10 minutes of freezing time, add the mini chocolate chips.
3) Scoop the sorbet into dessert bowls and garnish with fresh mint sprigs.
For the mint simple syrup:
1) In a small saucepan, combine the sugar, water and mint leaves over a medium heat. Bring to a boil, then reduce the heat and simmer for 5 minutes, stirring occasionally, until the sugar has dissolved.
2) Remove the pan from the heat and allow the syrup to cool for 20 minutes. Strain before using.