What's the plural form of treacle mustard? Here's the word you're looking for.
Answer
The noun treacle mustard can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be treacle mustard.
However, in more specific contexts, the plural form can also be treacle mustards e.g. in reference to various types of treacle mustards
or a collection of treacle mustards.
