Wash and perboil the crabs with salt, knorr cube, onions till it's cooked through and it's tender, set aside

Blend tomatoes with tatashe, pepper, onions, ginger and garlic and set aside; heat up pot or frying pan on heat add veg oil and fry the meat a little bit.

Use same oil pour in the blended tomatoes paste and allow to fry, stir so it doesn't burn. cook till the water dries off and the sour taste is gone

Pour in the crab stock and stir in little water if necessary and simmer on low heat

Add salt, shrimps, knorr cube and curry finally. add the crab, allow to boil very well then bring down.

Serve with boiled white rice