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