Microwave white chocolate and cream for 30 seconds wait a minute mix it till chocolate melts properly bring it room temperature now apply this mixture back side of biscuits and cover with other biscuit like sandwich keep it up in fridge for 10 minute

Melt dark chocolate fountain 30 seconds in microwave mix till melt properly now dip biscuits in and place it parchment paper cool it down keep it up in fridge for hour to set

Note if chocolate not melts in 30 seconds microwave again for 20 seconds don't over heat chocolate burns quick or it curdled