Soak soybeans overnight, drain water and boil (or pressure cook) till the beans are soft. And grind it roughly,Keep aside. Finely chop onions, ginger.heat oil in a pan, stir-fry onions, garlic ginger oil till soft. Add red chilli powder, black pepper powder, lemon juice, corn flour and soya sauce.

Stir for a minute and add the cooked beans and salt. Add sufficient amount of water and bring to a boil.