Cut the dried fruit in small pieces, if they aren't already place them in a large bowl.
Break apart the rice cakes and add them in a food processor, along with the walnuts and pulse few times until they break down into small pieces.
Add the above mixture into the bowl, along with the remaining ingredients (except the chocolate) and combine using cooking gloves.
Crumble the chocolate into a bowl and place it over a pot with boiling water (the bowl shouldn't be touching the hot water!), creating a bain-marie. Reduce the heat and wait for the chocolate to melt and remove from the heat.
Alternatively, melt the chocolate in a microwave. Add the chocolate in a bowl, cover with clean film and add in the microwave for 30 seconds at 800w. Remove, check if it has melted, if not add for additional 30 seconds. Be careful not to burn the chocolate.
Add the melted chocolate into the bowl with the rest of the ingredients and combine well.
Taste the mixture and adjust the sweetness to your preference.
Transfer the mixture into a dish lined with parchment paper and spread it in an even layer using the back of a spoon.
Place it into the fridge to set for a couple of hours.
Once it's set, cut into pieces and store it in an airtight container in the fridge for up to a week.