Mix the softened butter that has been brought to room temperature, and sugar.
Mix until the mixture turns white.
Add the egg yolk .
Sift the flour and cocoa into the bowl.
Fold in the flour and cocoa with a wooden spatula until the mixture comes together. The mixture will gradually come together forming into a dough, so keep on folding in the ingredients with a wooden spatula.
Wrap the dough with plastic wrap, and let it sit in the fridge for 30 - 60 minutes.
If you like, coat the surface with granulated sugar.
Slice into your preferred thickness.
Bake at 170°C for 20 - 25 minutes.
The crispy cookies are done.
This recipe is also great: Easy Butter Cookies, Recipe ID: 1424560.
The creamy aroma of butter makes these cookies irresistible.
Story Behind this Recipe
Enjoy these cookies with your kids.
This recipe is too easy, so there is nothing to note.