I have a dog that is part ShitZu and part Basset Hound - yes, quite a mixture but love her to pieces even with her horrible doggy breath. So, I decided to try one of the home made recipes from Pinterest for doggie treats for bad breath. The recipe I picked is very easy and for the most part - pretty much ingredients already on hand in my kitchen. Here is the link to the recipe.
The grocery store did not have any fresh parsley so instead I used the tube rather than dried and it worked pretty good. I just eyeballed how much I wanted to add.
Another tip I have read for bad doggie breath is to add parsley to their dog food. Along with brushing their teeth!
Once I had it all mixed up (I used the whole bunch of fresh mint leaves), I used the small cookie scoop to measure out. They stayed the same shape during baking. The recipe says to flatten but I did not and there was no difference in baking time. Also, using the small scoop they were not so large that my dogs could not handle them. We have three dogs - Chloe the Shitzu basset hound mixture, Daisy our Terrier and Sox our Poodle (well it was my daughters but a story for another day).
Overall, I would say it was an easy recipe and worked pretty good. It did not get rid of the bad breath completely but sure did make it less odorous. So, I would give this recipe 4 out of 5 stars.