Hard Cats. Dutch Licorice Cats might be a better term. Aside from the expected ingredients like licorice extract and a shitload of salt, do you know what they're made from?
Carbonated vegetable and beeswax.
Now, there are two ingredients you don't encounter every day. How do you carbonate vegetables? Do you rig up a makeshift appliance with your food processor and a Soda Stream?
And beeswax. I used beeswax to waterproof my new boots last week. Now it seems I should have been using it to make lollies. I didn't spot any recipe ideas on the back of the tube. OTOH, there were no warnings about ingesting it, either...