We must obtain a homogenous mass, easy to handle that does not stick on the hands. If it sticks we should add a little more flour or a little oil.We will have to cook them on the grill until they are golden, the time also depends on the thickness that we give to the hamburger. We will soak the soya, preferably in hot water for about half an hour. Strain the soybeans and try to eliminate as much water as possible so that it is only moistened.Mix all the ingredients and spices.