Chop your chocolate up into smallish chunks
Place in a glass saucepan over some hot water and allow it to melt slowly, stirring occasionally
In the meantime, lay out 12 rice cakes on some flat baking sheets and make sure you have your toppings prepped and ready to use
Once your chocolate is completely melted, add your optional maple syrup to desired sweetness
Take a spoon and drizzle equal amounts of chocolate mixture over your rice cakes
Using a knife, spread out evenly, covering one entire surface of your rice cake
Act fast whilst adding your toppings because you don't want your chocolate to set before you have finished
Squash the toppings into the chocolate slightly to stop them falling off. You need them to 'set' into the chocolate
Add your chunkier toppings to the chocolate first, and your smaller toppings (ie, desiccated coconut and spices) last. This is the best way to do it if you want your chunkier items to set into the chocolate properly.