Melt the chocolate (see
Place a ratafia biscuit in each chocolate case and drizzle with the liqueur or orange juice.
Pull the lavender flowers from the stalks and put in a pestle with the orange rind and sugar. Pound the ingredients to bruise and mingle the flavours together. Turn into a bowl with the cream and whisk until the cream is only just holding its shape. Spoon into the cases and decorate with lavender flowers and white chocolate shavings.
Serve immediately or chill for up to 6 hours.