Mix well; add to flour mixture and mix well. Roll dough into 2 balls; wrap in wax paper and chill. Dough keeps well if refrigerated and well wrapped. Roll out on foil and add favorite filling. Sprinkle with 1 crushed graham cracker. Bake at 350 degrees until nice and brown (approximately 45 minutes). After strudel is in pan, rub with water over entire top and sprinkle with sugar.