I found this recipe at another cool site that I ran across, Chica & Jo
Recipe:"Peanut Butter Dog Biscuits
2 cups whole wheat flour
1 cup natural peanut butter *
1 cup skim milk
1 tbsp baking powder
Preheat oven to 375 degrees F.
Combine the flour and baking powder in a bowl.
Combine the peanut butter and milk in another bowl, then add to the dry ingredients. Mix well, then knead into a firm dough with your hands.
Roll out to 1/4″ thick and use a dog bone cookie cutter to cut into cute shapes (or just use a knife to cut into small squares).
Place on a cookie sheet about 1/2″ apart (close is OK - they won’t rise)
Bake at 375 for 20 minutes or until thoroughly dried.
Makes about 7 dozen 2″ biscuits.
* The use of natural peanut butter here is important. This variety is made from nothing but peanuts and salt, so it’s better for your dog than the regular stuff, which is loaded with added sugar."