Watching Endeavour from the beginning with my phone handy for translation, and Mrs. Thursday told Fred his lunch was bloater paste sandwiches. I looked it up.
No but I’ve enjoyed tubed anchovy paste, sprat pate, salmon spread, taramasalata. I’d probably like bloater paste just fine.
what @jnglmassiv said, although I don’t think I’ve had sprat pate. I’d probably like it though.
ETA: damn, that is a mighty fine website:
The Yuckylicious Pantry is choc-full of revolting menu items for you to explore. Have a taste!
Why thank you, I think I will!
Interesting post, because I only learned the word “bloater” and what it meant a couple of days ago in the discussion on this Facebook post (which contained this photo, for those who won’t/can’t click through)
That yuckylicious site reminds me a little of James Lileks’ Gallery of Regrettable Food. All the entries are wonderfully disgusting, but I recommend starting with “Eww La La: French Cuisine”. Anyone who thinks French cuisine is necessarily elegant and tasty is in for a treat, in the same sense as a great horror movie is a “treat”! 
I’ve got a small container of Gentleman’s Relish (spiced anchovy paste + butter) in my fridge, and that stuff goes great thinly smeared on buttered toast. I can’t imagine putting enough of it on something to constitute a sandwich, though.
Same here. I love kippers— sounds like bloater paste is just kippers in paste form. Somebody needs to hire a Marketing firm to come up with a new name, though.
Ah, who am I kidding. This is a country that has spotted dick and bangers & mash. Brits love their silly, unappetizing food names.