Since Blade cache files holds the real PHP code that is parsed from the Blade file, I simply check the line in the cache file that the error states is the culprit. Even if that line is not the exact Blade code that you have written, you should be able to work out in which Blade file the erroneous code exists.
Installing this (or a similar) plugin makes the process of calculating where the error comes from even faster since you probably wont have to open the cache-file at all https://packagist.org/packages/rarst/wps