To Prep
In a blender, add all spice ingredients and blend until smooth.
To Cook
Heat oil in a pot, stir-fry spice paste and kaffir lime leaves until fragrant, about 8-10 mins.
Add the diluted tamarind paste and mix well. Cover the pot and bring to boil. Reduce to simmer for 3-5 mins.
Add prawns, sugar and salt, stir until well mixed. Cover again and simmer for 3 mins.
Transfer to a serving bowl and serve hot.
