MINISTRY OF FOOD Remember to pin up this useful advertisement in your kitchen DO without that second helping, that extra snack, unless you really need them. Turn today's scraps into tomorrows soups and savouries. Our waste is Hitler's weapon. Save food! Save money! Save cargo space for munitions! ON THE KITCHEN BLACKBERRY JAM Allow 1 lb. sugar to each lb. fruit. The blackberries must not be over- ripe. Put the fruit in a pan, and after sprinkling the sugar over it, let it stand for 3 or 4 hours. Place the pan over a low fire and stir with a wooden spoon until the sugar is quite dissolved and the mixture comes to the boil.