Rock cookies

This is the recipe of the cookies my mother used to make for us 20years ago. If you like more crispy one, add more batter and baking powder.

Preheat oven to 180 degrees C.

1.Beat butter with sugar in a large bowl until smooth.
2.Add beaten egg and stir into the sugar mixture.
3.Add soft flour and baking powder.
4.Add raisins.
5.Drop by rounded teaspoonfuls onto cooking sheets.
6.Bake it 15mins until light and golden.