Take a bowl, add butter and sugar. Then use an electric whisk to beat the mixture until it is smooth and well combined.
Add the flour and mix until resembles crumb texture.
Place the mixture on the worktop and mix with hands until it forms into the dough.
Shape the dough into a long rectangle.
Sprinkle regular sugar on a baking paper and roll the dough in sugar.
Cover it with clingfilm and refrigerate about 30 minutes until firm to cut.
After 30 minutes remove the cover and slice the pieces equally.
Enjoy these cookies with tea or coffee. Store them in an airtight container and eat within a week