Native to Africa and Asia, the tamarind tree grows readily in tropical climates. Tamarind adds a sour taste to dishes and it also has preserving qualities. The pulp from the pods is packaged in a variety of ways. It is available in blocks of a pulp and seed mix that is used to make tamarind water. To make tamarind water, soak the pulp and seed mix in warm water and mix with your fingers to help the pulp dissolve. Strain the resulting liquid through a fine strainer and discard the solids. Use 1 part tamarind to 10 parts water.