Add the coconut milk into a saucepan and heat until it's simmering (not boiling). When it starts to simmer, add the desiccated coconut and stir to combine.
Remove from the heat and allow the coconut to cool down. This also allows the desiccated coconut to completely absorb the milk. Store the coconut in a bowl, cover and set aside until needed.
Combine the jaggery, salt, water, cardamom and cinnamon in a saucepan, and heat over medium heat while stirring occasionally until the jaggery has melted completely.
Bring the sugar syrup to a boil. Add the coconut to the sugar syrup and mix well.
The coconut sugar mix will be runny, with extra moisture. Cook the mix over medium heat, until the sugar syrup is absorbed by the coconut and you have a sticky coconut mix.
Let the mix cool down to room temperature, while you make the crepes.