- Put the slices of banana into a solution of water, salt and turmeric and let sit for 5 minutes. Give it a good mix and transfer to a colander to drain completely. In a medium sized kadai on high heat, heat the oil. When it starts smoking, add the slices in small batches. Fry until golden and transfer onto a paper napkin. Repeat with the rest of the slices. Sprinkle with salt and chilli powder and let it cool. Serve.