When I got some stuff off freecycle, I was also given a book from 1969 (500 Reccipes fpr Home-made wines and drinks) it cost 3/6 back then!!! in the front of it someone has wrote their own recipe in:

Orange whisky:

4lb Potatoes
6 Oranges
1/2 packet rasins
1lb Wheat
4lb Sugar
1 oz yeast

Wash potatoes + cut into quarters, place in 1 gal of water and bring to boil, and when boiling boil for 10min!

Peel oranges, remove pith from peel and break fruit into segments, chop rasins,

Add orange segments, peel, rasins, sugar and wheat into plastic bucket!

add water off potatoes, stir until sugar i diolved, make up to 1 gal, when cool add yeast, cover bucket and stir daily for seven days.

After seven days syphon into DJ (use air lock) and after six weeks rack and bottle!

doesn't say weight of rasins but might substiute for a tin of youngs grape concentrate, im going to bung in a pkt of high alch yeast in!!

Sugar refining has come on quite a lot since the 1960s and 4 lbs/gal is an almost impossible amount to ferment.

With raisins or grape juice concentrate added too, 3lbs will be quite enough.

If you've got a good yeast and you really want to make fire water you can always add a few ounces at a time when it's almost fermented out, otherwise you're going to get a very sweet end product.