Bring coconut cream, palm sugar and fish sauce to the boil in a saucepan, uncovered, then reduce to a simmer and stir in massaman curry paste, sambal bajak and lime juice. Cook for 5 minutes. Taste and, if necessary, adjust seasoning.
Reduce heat to very low and poach scallops in coconut sauce for 2-3 minutes. Remove scallops from sauce and remove sauce from he