When ready add the vanilla and pour it at once into greased or oiled tin.
My mother was a working mum. She was a business-woman, dress designer, back in the 1950’s, so she never got involved in the toffee-making ventures for school fetes. I remember that most other mums would make this toffee recipe up. The children of working mothers were called “latch-key kids” and we got bullied, especially if we did not have a father living at home, so toffee-apple day at school fetes brought no joy to me.
Women in the 1950’s, earned considerably less than men, so a child of a sole-supporting, female parent, did not get a chance to sample these toffee sweets.
You had to work quickly, as the mixture would set, as soon as you took it from the stove.