Dogs love the taste of peanut butter and you can make simple, inexpensive treats at home using your own wholesome ingredients. Not only will your dog enjoy the fresh treats, he won't be eating the fillers and preservatives that are included in some commercial dog treats. When making treats for your dog, use natural peanut butter without added sugar, your dog will still love the treats and they will be healthier for him.
Combine the whole wheat flour and the oat bran flour in a large mixing bowl. Add the peanut butter and lard and work them into the dry ingredients with a fork until the mixture resembles pea-sized crumbs.
Stir in the egg and the broth until well combined. The mixture should be about the same texture as thick cookie dough. If it seems a little soft, add a couple more tablespoons of whole-wheat flour. At this point, you may wrap the mixture in plastic wrap and store in the refrigerator for up to three days or you may roll it out immediately.
Sprinkle flour on a large sheet of waxed paper and roll out the mixture in a rectangle no larger than your cookie sheet and approximately ¼-inch thick. Sprinkle more flour on top as you roll it out if it is sticky.
Place the cookie sheet upside down on top of the rolled out mixture and use your hands or a large piece of cardboard, inserted under the waxed paper to flip the everything over onto the cookie sheet. Peel off the waxed paper.
Bake the treat mixture in your oven for approximately 30 minutes or until the edges and the top are golden brown.
Remove from the oven and use a large greased knife or a pizza cutter to score the treats into bite-size squares while the mixture is still warm. When the treats cool, they will break apart easily. Store your dog's peanut butter treats in an airtight container or a large zip-type plastic bag.