Preheat oven to 325 degrees. In large bowl, combine broth with margarine. Add powdered milk, salt garlic, parsley and egg. Stir in flour in 1/2 cup increments, mixing well after each addition. Knead the dough for 3-4 minutes and roll out to 1/2 inch thickness. Cut into desired shapes, place on greased cookie sheet and bake for 50 minutes. Remove from oven and let dog biscuits cool until dry and hard. Makes approx. 1-1/4 pound dry dog biscuits.