Franco's cure #1 is 5.8824% nitrite and the rest is salt. I can give you dry cure recipes easily enough, but I would like to check with Oddley before advising on immersion cures.
I use this for hams: 1 litre cider 126 gm Salt 126 gm Sugar 6 gm Saltpetre.
Sorry to keep asking , but would I use the same weight of cure#1 as the saltpetre (instead of the saltpetre) and would I decrease the salt (because of the salt in the recipe ?
3 Gallons ice cold water 6oz salt (preferably iodine free or unrefined) 6oz cure No. 1 (same stuff Franco sells) 1 level tbsp ground white pepper 20 bayleaves or 1tbsp ground bayleaf 1 tbsp ground cloves 3oz brown sugar or replace 3 pints of the water with 3 pints coca cola (not diet) - I prefer the coke, trust me it works!!
I think it was orinally from 'spuddy' the salt and sugar quantities seem rather small to me after looking at other recipes...
This is the smallest of the 2 hams, this is half a leg weighing about four and a half kilos , the other is a whole leg at over 10 kilos ! (thats still in the brine )