Directions

1. Make the ganache
   Place the chopped chocolate in a heatproof bowl.
   Heat 1 cup of the cream until just steaming, then pour over the chocolate.
   Leave for 2 minutes, then stir until smooth and glossy.
   Stir through the black lime powder.
   
2. Cool
   Leave the ganache to cool on the bench until it reaches room temperature.
   It should be fluid but no longer warm.
   
3. Whip and Fold
   Whip the remaining cream. Keep about 1/2 cup aside for serving. Gently fold the rest of the whipped cream through the ganache in two- three additions until light and mousse-like. Don’t over mix. 
   Serve
   Spoon into glasses and finish with whipped cream, chocolate shavings and lime zest. Eat immediately for fluffiest consistency. Keep in the fridge for up to 3 days before serving.