Sambal Ulek (Indonesian Hot Chili Paste) Recipe from: Esther Westerveld 25 fresh red chillies vinegar or tamarind liquid 2 teaspoons salt Put the chillies, seeds and all, into container of electric blender. Add enough vinegar or tamarind liquid to keep the mass moving and blend to a paste. Add salt. Put into a sterilised bottle and store in the refrigerator.