- Place the biscuits in a sealable bag and crush with a rolling pin until they reach a sandy texture.
- Pour the biscuit crumbs into a bowl along with the melted butter. Mix then pack 2tbsp into the bottom of each glass. Chill while you make the filling.
- For the filling, thoroughly mix together the mascarpone cheese, caster sugar, lime juice, zest, colouring and chopped mint. Pile on top of the bases and smooth then chill for 1-2 hours.
- Finish with slices of lime, a sprig of mint and some straws.