A cup holder insert for increasing the depth of an existing cup holder includes a generally cylindrical body with an open top, a bottom and a sidewall. The body also includes an upper lip extending outwardly from the sidewall and surrounding the top. An engagement system having a flexible lip, an engagement aperture and an alignment flange functions to secure the cup holder insert into an existing cup holder to increase the existing cup holder depth. A method for inserting the cup holder insert into an existing cup holder is also disclosed.