3/4 cup hot meat juices, beef or chicken broth
In a large bowl, pour meat juices over margarine. Stir in powdered milk, salt, sugar and egg. Add flour, 1/2 cup at a time, mixing well after each addition.
Preheat oven to 325 degrees.
Knead the mixture for three to four minutes, adding flour if necessary to make a very stiff dough. Pat or roll to 1/2 inch thickness, and cut out biscuts with a dog-biscuit-shaped cutter or any other cutter. Place on greased baking sheet and bake for 50 minutes. Allow to cool and dry until hard.