If the whole peppercorn and cloves bother you, you can take strain the sauce and take them out before pouring the rest over the crab. This curry improves over a few hours as the sauce seeps into crab. I buy my crab fresh from my fishmongers who kindly offers to clean and cut it for me. I add about 4-5 tbs. of the brown meat that sits in the main shell of the crab for that extra flavour but you can add more or less.