How can I make yogurt icing for dogs that hardens?

Well, honey, to make yogurt icing for dogs that hardens, you can mix plain yogurt with a bit of honey or peanut butter for flavor, then add a small amount of Gelatin to help it set. Pop that pup-approved concoction in the fridge to chill and firm up, and voila, you've got yourself some fancy doggy icing that'll harden in no time. Just make sure your furry friend doesn't go too crazy with it - we don't want any sugar rushes in the dog park!