Again we reference our online friend, Merriam-Webster.  They define RAMEKIN as:

1 : a preparation of cheese especially with bread crumbs or eggs baked in a mold or shell

2 : an individual baking dish

Now we’ll use RAMEKIN in a sentence:

This recipe for soufflé au fromage requires a ramekin.  For individual servings it will require several ramekins.

If you don’t want to prepare the soufflé au fromage yourself (which is always fun and rewarding) then you can always go to Whole Foods and buy their excellent frozen rendition.  It smells and tastes great!