I think malt extract is different from Marmite, which is yeast extract. Both delicious anyway! I still love marmite on toast, and would like to have malt extract again now - lovely sweet sticky stuff! Cod liver oil wasn't so good, though! Someone mentioned condensed milk, too, wonderful stuff, I used to eat it from the tin, and also spread on bread.
Didn't enjoy the cold of those days, again as mentioned before it was awful having ice on the inside of windows!
Glad I didn't suffer bullying like some posters, I remember my childhood as happy, despite the war and the shortages etc afterwards.