Preheat the oven to 350 degrees.
Mix together the wet ingredients in a large bowl.
Add the flour and coconut to the wet ingredients and mix to combine.
Pour the mixture into a 9 x 13 inch glass baking dish. Bake for 20 to 25 minutes, until it's set and the top begins to brown.
Cool completely on a wire rack and cut into 16 bars.
While the bars are cooling, coursely chop the unsweetened chocolate.
In a double boiler, combine all three chocolate drizzle ingredients and heat until melted. Stir them until well combined.
Let the chocolate cool and solidify a bit. With a spoon, drizzle the chocolate onto the cooled bars.