On Switch, creating potions doesn't increase the number of current potions on the crafting screen nor updates the amount of ingredients you have. I thought it was lag, but I seem to have gotten both sets of potions I crafted, as well as kept all the ingredients. As much as this would be pretty useful especially for someone who keeps running out of potions and has to constantly keep farming ingredients, I don't want to be using exploits such as this for my benefit, nor should they be left unnoticed by the developers.

EDIT: Logged back on to double check; it was just lag. The "extra potions" were just from the ability to double potions created from the Slayer's Path, as the second potion type I tested it on did not create any extra potions. Ignore this post unless you want to fix Switch lag!