On Wednesday, November 8, 2017 at 7:52:14 AM UTC-10, Cindy Hamilton wrote:
>
> I've seen canned spotted dick in the British section of the
> "foreign foods" aisle at the grocery store.
>
> I'm not sure I've seen black pudding, but I have seen a number
> of kinds of blood sausage.
>
> Cindy Hamilton

I have seen these cans at specialty stores too. For the most part, they're not sold in stores.