1 tsp pepper
1 tsp cumin seed
a small pinch of turmeric
a little vinegar
salt to taste
1. Clean the crabs and cut into halves.
2. Fry in oil one sliced onion, add crab pieces and pour a little water.
3. Add powdered pepper, cumin seed, turmeric powder and the remaining 2 onions (sliced), vinegar and salt.
4. Cook well till done with a thick gravy.