Place tamarind pulp in a small medium - mesh sieve and partially submerge into simmering liquid (it will soften and start to dissolve as time goes by). (bonappetit.com)
When serving you can pour another tablespoon of tamarind pulp thinned with water, to get a tangy taste (bengalicuisine.net)
Add tamarind pulp and remaining sauce ingredients. (myrecipes.com)