Grease a 20 x 30cm dish and line with baking paper.
Melt 4 tbsp maple syrup, 175g dairy free butter and 100g dark chocolate together. You can either do this in a tightly fitting heatproof bowl over a pan of boiling water or in the microwave. If you opt for the microwave take it out and stir every 30 seconds and be very careful of the heat.
Place 325g crushed biscuits, 100g chopped nuts or seeds, 50g mixed peel, 75g dried cranberries, 50g raisins, 1 tsp ground cinnamon and 1 tbsp chia seeds (if using) into a mixing bowl and combine.
Pour the chocolate mixture over the dried goods and stir well.
Transfer to your prepared dish, allow to cool and then put in the fridge overnight to firm up. You can speed this process up by putting it in the freezer for an hour.
Once set cut into slices, place in an airtight container and store in the fridge.