Anonymous functions are not easy to profile because they inherently don't have a name under which they could show up in the profiler. There are two ways to work around this:

$('.stuff').each(function() { ... });

Rewrite to:

$('.stuff').each(function workOnStuff() { ... });

It is not commonly known that JavaScript supports naming function expressions. Doing this will make them show up perfectly in the profiler.

There is one problem with this solution: The named expression actually puts the function name into the current lexical scope. This might clobber other symbols, so be careful.