Combine four, baking powder and salt in a med. bowl, set aside.
Cream butter and sugars until light and fluffy, mix in vanilla. Beat in eggs, then
Gradually mix in flour mixture. Stir in chocolate chips.
Spread into a well greased 10 x 15 inch jelly roll pan. Bake in a
preheated over 350 deg. for 20-30 min. or until wooden toothpick when inserted
into the centre comes out clean. Cool completely. Dust with powdered sugar (use a
seive). Cut into bars, makes 6 doz.