Kaffir lime is as indispensable in Thai cooking as parsley in an Italian nonna’s kitchen. When crushed, leaves from this citrus tree are intensely aromatic, adding a unique freshness and vibrancy to food. A tip: If you don’t have a kaffir lime tree you can buy the leaves from an Asian grocer and freeze any you don’t use. Nam jim is a traditional Thai dipping sauce reimagined in this recipe as a granita!
