I made a new batch of this just last month -- it's a product that's stood the test of time in my household. I want to mention I no longer use 10% EOs as I shared in the 2015 post. After testing, I have found the salve is effective with less EO, so I now use a total of 3% EOs or less. If you want to make just the jelly without medicinal additives, substitute plain oil rather than infused oil and don't add any EOs.
lsg shared a link to another tutorial for "unpetroleum jelly" -- Soaping 101