Just a simple mod that replaces the Dirty Water ingredient in cooking recipes to Purified Water. That's it, nothing more.
Okay I think I got the NMM download to work!!

Added an optional file for Far Harbor recipes.

Installation:
Just click the "Download with NMM" if you use it.

or

Manual:
Place the "Purified_Cooking.esm" file into your Fallout 4 data folder.