Restoring deleted 'root' user and password for MySQL

I accidentally deleted the root user on my local dev setup of MAMP/MySQL running on OS X. There are no other users created to get back into MySQL.

This is a mild nightmare can't seem to do anything without root.

Found this: http://hack2live.blogspot.com/2009/04/restore-repair-reset-mysql-root.html which seems like exactly what I need.

I also don't think a reinstall of MAMP will do the trick, as a lot of my cursory searches yielded people who had tried without success.

Does anyone know of an OSX friendly way to recreate root @ localhost back into MAMP's MySQL? I basically just don't know where MySQL is living in MAMP or how to execute the correct commands in terminal to try and fix it.

Update

I tried several options below to restore root to no avail and decided to restore a backup of the entire MAMP application. So I've got root back, I can open phpmyadmin, etc.