Place flour, yeast, cocoa, sugar, cream and egg in the bowl of robot and rotate it.

Add the butter and continue kneading until a ball of dough is formed.

Wrap on contact and place in a cool place for 2h.

Low the dough with a roll and cut out stars using a cookie cutter.

Place the stars on a plate covered with parchment paper or on a silpat and cook for about 10 minutes in the oven at 160 ° C.

Let chill on a rack.

In a bowl, mix about 150g icing sugar with a tbsp of cocoa.

Add water, little by little to obtain a frosting easy to spread.

Frost then the chocolate stars, with a spoon or a small spatula.

Let the icing harden a few hours before placing the chocolate stars in a metal box.