Mix the lemon curd and Limoncello (or lemon juice) to make a syrup. In another container thoroughly mix together the mascarpone, greek yoghurt and icing sugar. Add most of the lemon syrup to the creamy mixture, and fold until it is combined.
Spoon into dessert dishes, or try serving in stem glasses for a modern twist. Pour the remaining syrup over each, and top with the candied cherries.