I practically lived at the Cellar at the flagship Macy’s in NYC. They used to have a rivelry with Zabar’s. I don’t remember the British food, though.
Most grocery stores now have a British section. I just bought HP sauce for my husband’s “bangers” which we bought at Myers of Keswick in NYC.
It was your mention of Crosse and Blackwell that triggered that. Don’t recall seeing them anywhere but at Macy’s, but could be mistaken.
That reminds me - I finally bought the Branston Pickle. It really is good; I expected it to be like the store-bought chutneys that I’ve tried, but it’s much better.