Chocolate bar

A chocolate bar is a food item that heals 3 HP when consumed. It is used as an ingredient in Cooking but can also be ground to chocolate dust using a Pestle and mortar.

You can find a chocolate bar spawning in the Cooking Guild, Tree Gnome Stronghold or in The Culinaromancer's Chest during and after the Recipe for Disaster quest.
Or buy it from Funch's fine groceries located in The Grand tree, for 12 gp ea.