Want to see more vegan brittle and bark recipes here? Help out the vegan baking community by submitting your own! A brittle or bark is a confection made of set caramel, other additives and embedded with nuts that has fully crystallized into a solid state. A bark differs from a brittle in that it contains a chocolate coating on one side that resembles the bark of a tree. Vegan brittle and bark recipes utilize vegan caramel mixtures often containing nut butters and vegetable oils instead of creams and butter.