Simple Dog Biscuits

2 1/2 cups wheat flour
1 teaspoon salt
1/2 cup nonfat dry milk
6 tablespoons oil
1/2 cup cold water
1 egg
1 teaspoon granulated sugar

Mix all ingredients and knead for 3 minutes. Roll 1/2-inch thick and cut into desired shapes (a bone-shaped cookie cutter is nice). Bake on a greased cookie sheet for 30 minutes at 350 degrees F.