Luscious Lemon Bars

1 cup sifted flour
¼ cup confectioners sugar
½ cup butter chilled
3 eggs well beaten
1 cup sugar
2 Tbs flour
½ tsp baking powder
½ cup lemon juice

Confectioners sugar icing
½ cup sifted confectioners sugar
1 ½ tsp cream
¼ tsp vanilla

Blend 1 cup of flour and sugar in a bowl. Cut the butter until blended. Firmly and evenly press in pan. Bake at 350* for about 15 minutes. Beat eggs and remaining dry ingredients and then lemon juice. Pour mixture into pan over crust. Return to oven to bake about 25 minutes at 350*. Remove to wire rack and cool in pan.
Spread with sugar icing and top with toasted sliced nuts. Cut into bars. Serve with vanilla ice cream.