Add the following mods to your modpack, which may already be installed, if it is a good modpack.

MTLib-3.0.5.jar
CraftTweaker2-1.12-4.1.9.jar
modtweaker-4.0.12.jar

These mods make a real easy to use recipe editting system.

Run Minecraft once to make sure the mods work ok with your pack.
This will also add minecraft/scripts folder to your Instance folder

In the zip file, please find this text, readme.txt and recipes.zs

Place the file recipes.zs in yout minecraft/scripts folder.

Restart Minecraft and enjoy.

I went through the entire listing in JEI and retro changed all recipes of items of the same name in the MC 1.10.2 version. All simple and enhanced items as well as other new items in the MC 1.12.2 version, I left in place as possible options. 