Chocolate-coated marshmallow treats, also known as chocolate teacakes, are confections consisting of a biscuit base topped with marshmallow-like filling and then coated in a hard shell of chocolate. They were invented in Denmark in the 19th century and later also produced and distributed by Viau in Montreal as early as 1901. Numerous varieties exist, with regional variations in recipes. Some variants of these confections have previously been known in many countries by names comprising equivalents of the English word negro.

Marshmallow is a confectionery made from sugar, water and gelatin whipped to a solid-but-soft consistency. It is used as a filling in baking or molded into shapes and coated with corn starch. This sugar confection is inspired by a medicinal confection made from Althaea officinalis, the marsh-mallow plant.