Rover's Rewards

3/4 cup hot meat juices
1/3 cup margarine
1/2 cup powdered milk
1/2 tsp. salt
2 tsp. sugar
1 egg, beaten
3 cups whole wheat flour

In 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 the oven to 325 degrees. Knead 3-4 minutes, adding flour if necessary to make a very stiff dough. Pat or roll to 1/2" thickness and cut out biscuits with dog biscuit cutter (or other cutter). Place on greased baking sheet and bake for 50 minutes. Allow to cool and dry until hard.