Thymesia

When you've unlocked the 3 ingredients slots for your potion of choice, using a specific combination of these will produce a "recipe" and give an additional bonus upon consumption.

Mint + Black Pepper + Lavender = "Courage - Gain a stack of Defensive buff"

Mint + Black Pepper + Cinnamon = "Sweating - Gain a stack of Offensive Buff"

Basil + Black Pepper + Garlic = "Warming up - increases damage by 10%"

Rosemary + Sage + Thyme = "Four Thieves Vinegar - Increases Maximum Health by 100%"

Rosemary + Thyme + Mint = "Focus - Increase Memory Shards drop amount by 10%"

Fennel + Oregano + Mint = "Refreshing - Recover 3 energy per second"

Rosemary + Clove + Lavender = "Pain Relief - Reduce damage taken by 10%"

Fennel + Oregano + Clove = "Circulation - Recover 5 health per second"

Using one recipe from the above list will net you the achievement