Vigorously mix the softened butter, brown sugar and eggs;

Add the vanilla powder to the mixture;

Gradually add the flour and yeast;

Pour in the cocoa nibs and mix well;

Let the resulting dough rest in the refrigerator for 5 minutes;

Using a small spoon, make a ball of dough on a baking sheet lined with parchment paper;

Bake for 15 minutes, keeping an eye on the color of the cookies;

Remove the plate and let it cool.

Enjoy!