There has already been a post (https://umd.net/forums/wam-alert--pie-fight-in-soap-opera) about a potential cake fight in the Brazilian soap opera Verao 90 that didn't actually happen (i.e. instead of cake fight we got unimpressive juice/beer splashing).

However, there is another scene from Verao 90 (cap. 123) where Isabelle Drummond and Rafael Vitti are watching the famous food fight from Guerra dos Sexos (1983), and they recreate it (in their dreams).

https://globoplay.globo.com/v/7708340/

Just to add a little bit of context, the scene that is referenced here is this classical food fight between Fernanda Montenegro and Paulo Autran from Guerra dos Sexos (1983): http://globotv.globo.com/rede-globo/memoria-globo/v/guerra-dos-sexos-1a-versao-guerra-de-comida/2507279/

Rede Globo hold this classical scene in high regard and claim to use it as a "blueprint" for various food fights in other shows, like for example in I Love Paraisopolis (cap. 22) where Bruna Marquezine and Maria Casadevall have a food fight in similar style, see here: https://globoplay.globo.com/v/4227306/ or here: https://globoplay.globo.com/v/4240537/

The show Guerra dos Sexos was recreated in 2012 under the same name, and is pretty much copy of the original one. In cap. 10 there is recreation of the classical food fight, this time between Irene Ravache and Tony Ramos, and the actual scene from 2012 is interlaced with small clips from 1983, see here https://globoplay.globo.com/v/2184940/
They even made the animated into for the whole show after the food fight: https://globoplay.globo.com/v/2166758/

There is also another food fight in the final episode, where Irene Ravache and Tony Ramos on one side have a food fight against themselves (in dual roles) on the other side: https://globoplay.globo.com/v/2540909/ This scene from 2012 is also interlaced with the equivalent scene from 1983.