An apparatus for heating beverages is disclosed. The apparatus includes a base and a container for holding liquids. The base has a heater plate that is heated by one or more heater elements attached to the heater plate. A power source in the base provides electricity to the heater elements. The base is removably attachable to the container. The container has an inner cup that sits inside a chassis. The inner cup is made of metal and has an open top for receiving liquid, a circumferential wall, and a closed bottom. The chassis has an open top for receiving a liquid, a circumferential wall, and an open bottom. When the container is attached to the base, the closed bottom of the inner cup is configured to contact the heater plate and receive heat from the heater plate.