Preheat the oven to 180°C/160°C fan/350°F/gas mark 4. Line two baking sheets with baking parchment.
Spread the desiccated coconut out in a wide skillet or frying pan over a low heat. Stir until it turns golden then remove from the heat, tip into a bowl and set aside to cool.
Cream together the vegan butter, caster and light brown soft sugars, vanilla extract and milk with an electric mixer until fluffy and well combined.
Stir in the cooled toasted coconut. Finally mix in the flour until fully combined.
Roll the dough into 23 balls, about a rounded Tablespoon each, or 32g (I prefer to weigh them out). If the dough is too soft to roll, cover the bowl and pop it in the fridge for half an hour to firm up a bit.
Place the balls of dough well spaced apart on the lined baking sheets.
Use your fingers to flatten the balls of dough; they don't spread out much in the oven so flatten them to the thickness you would like your cookies, I go for about 1cm.
Bake for about 20 minutes, until pale golden.
Trasfer the baked cookies to a wire rack and leave to cool completely.
Once cool, drizzle with melted chocolate and sprinkle with some extra toasted coconut if you like.