Heat oven to 375F (190C). Grease a
9-inch (23-cm) square pan. Sift flour, baking powder, salt and sugar
into a bowl. Add shortening, egg, milk and vanilla and beat hard
until batter is smooth. Pour into prepared pan and bake 25-30
minutes or until top springs back when touched lightly in the
center. Cut in large squares and serve warm with hot
Golden Citrus Sauce.