Key Lime Pie

Directions

1. 1
   Whiz the digestive biscuits in a food processor until breadcrumbs.
2. 2
   Mix in the melted butter.
3. 3
   Press the mixture into the base of a greased 20cm loose-bottomed pan.
4. 4
   Place in the refrigerator for 30 minutes to firm up.
5. 5
   Meanwhile, zest and juice the limes into a bowl.
6. 6
   Add the condensed milk and cream and whisk until creamy.
7. 7
   Pour over the chilled base.
8. 8
   Place back in the refrigerator for at least an hour.
9. 9
   Decorate with shavings of bitter chocolate before serving.