Preheat the oven to 190°C (th 6/7). Melt the butter in a saucepan. In a bowl, mix the sugar, flour and cocoa. Pour the melted butter, then coconut milk. Mix well
Take small spoonfuls of dough and place them, spreading them a little, on a baking sheet covered with baking paper. Take care to space them well apart. Bake for 10 minutes
Wait 30 s before removing the serrated tiles from the plate, place them immediately on a rolling pin so that they take on a rounded shape. Drill a small hole and allow to harden. Thread a tie or string through the hole and hang them up.