-preheat oven to 200 degrees Celcius
-sift together flour, baking powder and salt
-add milk, stir with a fork to make a soft dough
-turn dough onto a lightly floured board. Knead.
-roll out dough to 1 cm thickness
-spread with butter, sprinkle with sugar and cinnamon. Roll up to form log.
-cut off pinwheels about 2 cm thick
-bake on ungreased pan 12-15 minutes