Line a baking form or bowl with cling wrap and spread a third of the mascarpone-forest berry-cream. Mix together in bowl the raspberry brandy, red currant liqueur, and red currant juice. Briefly soak half the sponge fingers in the juice-brandy mixture and put on top of the cream in the baking form. Add another third of cream. Top that with Forest Berry Preserve Extra. Briefly soak the other half of the sponge fingers in the juice-brandy mixture and put on top of the cream. Top this with the rest of the cream and cool for 6 hours.