Oh dear

RangerSteve

Treacle is Black, Golden Syrup is - er - um - golden. Look at the tin.

Because English morphs over the years (yes even in the UK) and local variations apply:

treacle is now a generic name for Invert Sugar Syrup - refined or no.
and black Treacle is - er black - invert sugar syrup unrefined so contains less sugar and more burnt sugar (AKA molasses) but is sweeter and runnier than molasses.

FWIW Black Treacle can explode - indeed I have attempted to wash out a treacle tin with hot water, with the lid held on, and it ends-up spraying from the pressure built-up inside.

I have Treacle (Oh OK Black Treacle) on my porridge (=porrige in Scotland) every morning, and do read the tin.

Once we have tamed the Celtic fringes' (some of them numpties) torturous use of ENGLISH - well watch-out the colonies.
Now-
Canadians - how do you pronounce Stouffeville (Ont) and Yanks (our version of what constitutes a Yank) how do you pronounce Arkansas and for that matter why does it not follow the Kansas City syntax?
over the years the name Werster has morphed too. The suffixes 'cester, 'caister, 'xeter and places like Caerleon denote Roman garrisons usually. But we Anglo-Saxons wupped 'em.