4       large baking potatoes
                sprinkle of onion powder
        1/4     tsp     baking powder
                whites of 2 jumbo eggs
                pepper to taste
        2-4     tbsps   matzoh meal, just enough to keep mixture together 
                salt (optional)
        Grate potatoes by hand to retain bubbe's texture
        Mix all ingredients in a bowl.
        Cook on cast iron preheated skillet in a 500 degree oven.  Skillet 
        is placed on bottom shelf and not removed from oven.  Spray lightly
        with Pam.  Pan must be exceedingly hot, latkes must sizzle when dropped
        in pan.  Latkes must also be very thin in order to cook properly.
        Cook 3 minutes on each side.
        I  serve them directly from the oven, reheating them causes them to lose
        their crispness.