How to make
Mix the flour, sugar and vanilla. Add butter to the dry mixture and knead a soft dough. Make balls and arrange them on a tray lined with baking paper.
Using a small tip or pen cap, dip it in the cocoa and outline each ball. Bake at 360°F (180°C) for 8-10 minutes.
When they become golden on the bottom, take them out. Allow them to cool and sprinkle with powdered sugar.