Soya Vadai (Fritters)

I made tau foo fah and before getting there I had to make soya bean milk (tau sui) which left me with lots of soya 'waste' after blending the soya beans to get the milk. I recalled a friend of mine made good use of the leftover soya by using it to make prawn fritters so I looked up a recipe for vadai. The resulting mixture was a bit awkward as it wouldn't 'clump' together easily but once it gets into the oil for deep frying it was fine.