Homemade dog biscuits or treats

I've been experimenting with dog biscuit/treats recipes for a while now but finally have come up with one that suits all of us. I'm happy because they're healthy, easy to make and quite inexpensive, and the dogs are happy because they prefer these biscuits to the bought ones. I've tested this several times by putting a handful of their bought biscuits in a bowl next to one of the homemade