# Put castor
sugar,
flour,
cocoa and vanilla in a mixture bowl, and mix them without adding anything else.
# Add the melted butter in room heating, knead until it becomes smooth dough.
# Rest the dough for 10-15 minutes and then pick
walnut sized parts from the dough, and roll them.
# Place the rolls on greased oven tray.
# Shape by pushing slowly a wet fork on the cookies.
# Bake for 15 minutes in 180 C (F 356) heated oven.
# Serve cold.
