Rinse the beans and drain again. Put them in a bowl and, using a potato masher or a fork, mash them roughly.
Add the garlic, spices, tomato purée, salt & pepper. then combine well.
Mix in the chopped spring onion and sweet corn pieces, then the coriander leaves.
If the mixture is too sticky, add some chickpea flour and combine.
Make about 6-8 patties and put them on a plate. Chill for about 30 minutes.
Heat some oil in a non-stick pan.
Coat the patties in some chickpea flour then fry them on both sides until golden brown.
Serve them warm or at room temperature.