Most of them are easy to figure out, as they are combining things such as tormented souls and elemental essences to get the next tier. A few might be cheat-y, but I'll let you make that call. I'm working on a few other combinations but they're not ready yet.

2x Fire Essence > High Quality Fire Essence, 2x HQFE > Alien Fire Essence
2x Water Essence > High Quality Water Essence, 2x HQWE > Alien Water Essence
2x Earth Essence > High Quality Earth Essence, 2x HQEE > Alien Earth Essence
2x Air Essence > High Quality Air Essence, 2x HQAE > Alien Air Essence
2x Shadow Essence > High Quality Shadow Essence, 2x HQSE > Alien Shadow Essence
2x Life Essence > High Quality Life Essence, 2x HQLE > Alien Life Essence
2x Tormented Soul > High Quality Tormented Soul, 2x HQTS > Alien Tormented Soul
2x Augmentor > High Quality Augmentor, 2x HQA > Ultimate Augmentor

I've also put in a couple of recipes for hard to get early on items, like the source bead, clay ect, for those who want to access some of that far sooner, but these are mostly tests so I will only talk about them when they're more ready for public use.

Simply extract to your Documents\Larian Studios\Divinity Original Sin 2\Mods folder.