Mix all the dry ingredients: charcoal and wheat flour, salt and sugar.

Grate the cold butter and knead the dough by hand, adding cold water as needed. Gather the dough into a ball and chill it in the fridge for 30 minutes.

Take the dough out and roll it thin on the counter, dusting with flour as needed. Cut out cookies with cutters.

Place the cookies on a floured baking sheet and bake in an oven preheated to 180°C for 10-15 minutes.

Let the finished cookies cool. Enjoy!