This is one of those 'I-would-love-to-try-this-recipe-if-I-had-a-metabolism-higher-than-Everest' recipes. It is a complete treat, one of those things that you just have to try to say that you've done it.
Once you've made your Toffee, storing it might be an issue, so make sure you have plenty of wax paper or try individually wrapping them. Personally I would let it set in a slab or try and pour it in to a slab mould of some sort.
1lb sugar, preferably Demerara
3oz peanut butter
1/3 pint of water
1 1/2 oz of butter
2 level teaspoons of golden syrup
1 teaspoon vinegar
1. Put all the ingredients into a strong saucepan and stir over a steady heat until the sugar has dissolved.
2. Bring to the boil and cook until the mixture reaches the 'hard crack' stage 290F.
3. Drop in teaspoonfuls on to a buttered or oiled tin and either allow to set as a slap or mark in to squares as the toffee becomes partially set. Then cut or break when completely set.