While in Kottayam we call banana chips upperi, in northern Kerala, upperi refers to thoran (check out Cabbage Thoran Recipe here), a Kerala dish made with vegetables and a ground coconut mixture. Call it what you want, these crunchy, delicious snacks are addictive and moreish. Oh, and you can also make banana chips in the microwave. The banana chips or upperi served at Kerala sadya is usually not cut into circles but further quartered into smaller pieces and they tend to be thicker. The thickness of the chips really depends on the slicer you have. Amma has had a very basic mandoline slicer for years which slices quite thin and it’s been used to make many many batches of delicious banana chips over the years. For Kerala banana chips recipe in Malayalam, Tamil, Kannada, Telugu, Urdu etc please use the Google translate button in the sidebar.