I had often heard of Branston Pickle, but never really knew what it was; here’s a blurb, and a recipe:
http://www.thekitchn.com/favorite-fall-snack-branston-pickle-197644
http://www.food.com/recipe/the-almost-original-branston-pickle-recipe-246675
Now that I know what it us....Branston Pickle is a must.
I’ve found Branston Pickle, as well as Marmite, at Wegmans, the old A&P, ShopRite and Stop and Shop in the int’l section. It’s pretty common in stores now. Whether it’s popular in the US, I don’t know. I happen to really like it.