Prepare the tamarind water and spice paste
14 minMash the tamarind paste with your fingers in 400 ml of warm water, then strain it through a fine-mesh cloth; the seeds and fibers should remain in the cloth. Remove the stems and seeds from the dried chilies and soften them in hot water. Then blend them with the shallots, garlic, galangal, the white lower part of the lemongrass, and the shrimp paste until smooth.