I store them in the freezer since they don’t have preservatives, my dog likes knows exactly when I open the freezer he can have one 🙂 In the fridge for a few days works but if you are keeping the whole batch I’d freeze them.

I made your Peanut Butter Biscuits and my dogs love them. What is the storage requirements, do they need to be refrigerated or frozen since they won’t be consumed right away?

I used Americolor Food Coloring.

I made the icing with powdered sugar and water, mixed to a consistency to pipe it on with a piping bag to write the names. Here is the recipe I now use on cookies and can be made for the dog treats too. https://www.createdby-diane.com/2012/01/how-to-ice-cookies-without-a-a-piping-bag-icing-the-easy-way.html and it easy to coat the cookies that way without piping all of them.
I’m sure your furry friends will LOVE them.
You may also get a kick out of the Pet friendly cakes I’ve made here https://www.createdby-diane.com/2013/01/how-to-make-a-no-bake-cake-for-you-cat-or-dog.html
~Diane