Blend liquid ingredients together well. Stir dry ingredients together and mix with wet mixture until it forms a ball of dough. Roll out to ½ inch thick and shape into/cut with a bone shaped cookie cutter. Bake biscuits in a preheated 400ºF oven on a non-stick baking pan for 20 minutes. Turn off oven and allow the treats to cool in oven until crisp and hard. May freeze or refrigerate.