I got this recipe from a friend of mine who, like me, probably does too much for her dogs. But the dogs love them!
SWEET POTATO DOG BISCUITS
4 C whole wheat flour
2 cups cooked sweet potatoes mashed
1/4 C vegetable oil
1/2 C milk
3 tsp baking powder
knead and roll out to 1/2 inch thickness, cut out w/cookie cutter
(i used biscuit round and added 1 tsp of turmeric great anti-inflam for us/them)
bake @ 400 for 12-15 min , when done pile 'em up , turn off oven, leave in for 1-2 hrs for them to harden up!