Nicky's Favourite Shortbread

Ingredients

1 c butter
1/2 c icing sugar
2 c all purpose flour
1/4 ts baking powder
1/4 ts salt
1 3/4 c if measured before sifting cream butter
1 squares

Instructions

WATCH IT, THEY BURN VERY EASILY. Remove gently please, they are still having birth pangs; place to cool on trays covered with waxed paper. Store in cans, they keep for weeks in a cool place, and their flavour mellows.