cooper's brew enhancer #2 is:
250g dried light malt extract
250g maltodextrin
500g dextrose
it should be anyway... i can't remember now
i tasted a toohey's dark ale brew kit with a brew shop stout mix bag added along with a baggie of hops once and it was much nicer than toohey's old.
i can't remember what the stout mix was. i think it was 500g dried dark malt, 250g maltodextrin and 500g dextrose. i can't seem to remember very much right now
i think that the following would be a close enough approximation to toohey's old - or at least a decent beer in the style of toohey's old:
1 can toohey's dark ale
1kg dark liquid malt extract
250g maltodextrin
500g dextrose
1 packet of goldings finishing hops
unfortunately though, toohey's old isn't what it used to be these days. now it's getting worse and worse. it used to be such a beautiful beer... anyway, this should turn out something closer to the original for you
-wombat