By definition, a Ramekin without a functional handle is just a bowl. A handle makes contact with the body of the ramekin at one or sometimes two places on the same side of the body. The handle of a ramekin creates its point of difference and can be unique to a studio or maker. The bowl of a ramekin is sometimes quite plain so the handle creates an opportunity for the potter to give visual balance or distinctive design to their work.
A handle must be comfortable to use because a ramekin is, first and foremost, a functional object. The handle should also be strong enough to support the ramekin. Some potters use other materials for their handles, ie wood, bamboo etc; ramekins do not. Ramekin handles are made from the same material as the bowl. Although a handle should be strong, it should not be seen as a method of holding the ramekin. It is only a support for the thumb. The ramekin should be cupped in the palm of your hand with your thumb resting over the handle.