Still curious when were Playbox Biscuits last being made in England?
What year approx?

I saw the various posts of different companies taking over but was it still being made by other biscuit companies after mergers happened after Peak Freen made them?

Someone else posted a recipe but here in USA we do not use metric system for measurements so really don't know what it would be in our recipes which we use oz. quarts, gallons, etc. Also don't know what caster sugar is. Is that different from regular sugar? Was at the store today (large supermarket and they do not have anything called Castor sugar) where I shop anyway.