So I'm a few hours past the prologue. Asked a couple friends and they both seem to have Griffin Decoction, yet I dont. I went back to White Orchard to look, but i've yet to find anything. Anyone who could help pointing out where it is that one can find this recipe?

Hi. I found this on a "?" marker.
It's not in the prologue zone, it's in the next.

I was on a monsters nest. (Ghoul).
There is "a cart", with 3 humans corpse. It was here I think.

I didn't do so much for now, so if you really want this recipe I can provide you a screenshot of all "?" I did.
I did 3 or 4 I think

aaah, thanks, it was the cave near Hanged man's tree.

No problem :D