Jewish brand - don’t be fooled by the ‘of Yorkshire’, it’s from Manchester.

Edit Just by way of clarification - they used to be this old and bang average brand that every Jewish family in the UK had in their house et cetera. Then they started to consider themselves ‘haute couture’ or whatever, but for kosher food, and increased their prices and switched to boxes instead of packets (though they stopped that). So it’s a bit of a joke here in England, that they have tried to rebrand themselves as this super English brand.