Leave the butter in room temperature until soft.

Mix butter with sugar with a whisk until creamy. You can use a mixer or a food processor to speed up the process.

Swift the dry ingredients and add to 2. Mix with a spatula until it forms a ball and refrigerate for 15 minutes.

Roll into a square 2 cm thick and cut into 8 bars. Poke each bar with skewers to make 2 rows of dots.

Bake in preheated oven (160C) for 20 minutes.