What is the English pronunciation of "nougat"?

In Scotland, Warwickshire and London I have only ever heard it pronounced

/ˈnuːɡɑː/

So I'm unsure why you state that traditionally Brits pronounce it

/ˈnʌɡᵻt/

My assumption is that traditionally we pronounce it the original French way, but there has been some change over time.

British pirate here... Usually I'd say 'Noo-garr'. If this was not being understood I'd probably say 'Noo-gat', or finally, 'Noo-gate'.

If I still was not being understood I'd probably buy some toffee, or a bag of almonds (that's 'Al-monds'...)

For what it's worth, the OED offers two British pronunciations -

/ˈnuːɡɑː/ , /ˈnʌɡᵻt/

And one US

/ˈnuɡət/

In the U.S., it's generally pronounced NOO-g@t, where @ is some vowel. I am fairly sure I have heard /ɪ/, /ə/, and /ɑ/, and if I believe the comments above, /æ/ is used as well.

The dictionaries say /'nugət/.

And I'm sure some Americans use the French pronunciation (although these would generally be chefs, snobs, or people who know French well).

Some people might be confused by the comments above. The phonetic spelling NEW-g't does not mean /njugət/ but /nugət/. Remember that most Amercians pronounce the word new as /nu/.