Unlike the traditional solemnity that characterised the service repertoire in most fine-dining restaurants at the time, the elBullirestaurante experience was always meant to be entertaining, and this was expressed in different ways and at different times.

One example is this Pop-up birthday cake, elaborated by elBulli and the Escribà patisserie, which was launched in 2004.

Although an edible cake was, of course, brought to the table, this fun creation was designed to be a different and surprising way to celebrate a birthday.