Mix your flour, baking powder, powdered milk and salt then set aside

Place your butter in a bowl, add icing sugar and mix them until it becomes smooth and soft

Transfer the dry ingredients into the butter and sugar mixture. Add your vanilla essence then Mix well until it becomes non sticky and place on a board or flat surface

Make it in a rectangular shape and use your knife to cut into small sizes

Use a fork to make line holes and arrange in a baking tray. Bake it @ 160degrees for about 40mins