Mix all ingredients together by hand in a bowl. It may take a bit of stirring before the dough comes together.
Form into 8 equal bars. I used this inexpensive silicon mold to make my bars all the same size, but you can also use a greased glass baking sheet, or you can shape the bars by hand.
Place the formed bars in refrigerator for 30 minutes to set. Once they're set, remove the bars from the silicon mold or the baking dish. At this point, you can choose if you'd like to make the chocolate icing and drizzle, (recipes below ) or leave plain.