Doggie Biscuits II

Preheat the oven to 325 degrees F (165 degrees C). Dissolve yeast in warm water until foamy, approximately 10 minutes.

In a large bowl, thoroughly combine the all-purpose flour, whole wheat flour, rye flour, bulgur, cornmeal, and powdered milk. Incorporate the dissolved yeast mixture, salt, and chicken broth. Mix until a stiff dough forms. If the dough is too dry, gradually add more broth until it holds together. On a lightly floured surface, roll the dough to a 1/4-inch thickness. Use cookie cutters to create your desired shapes. Place the biscuits 1 inch apart on an ungreased cookie sheet.

In a small bowl, whisk together the egg and milk. Brush the mixture evenly onto the tops of each biscuit.

Bake in the preheated oven for 45 minutes. After baking, turn off the oven and allow the biscuits to remain inside the closed oven overnight. This process ensures they become extra hard and crunchy, perfect for your canine companion.