1. Preheat the oven to 180ºC or 350ºF.
2. With the help of mixer, mix the flour, softened butter, sugar, egg and baking powder until the mixture is smooth. 
3. Then, mold into small balls of dough (3 cm in diameter), place them on a baking sheet covered with parchment paper and smash down a little bit using the teeth of a fork.
4. Bake for about 20 minutes or until the cookies are golden brown. 
5. Allow to cool and store in an airtight container.

Adapted from a Recipe by: Receitas de Portugal