1Preheat oven to 350.
Combine all crust ingredients in a bowl. Beat at low speed, scraping bowl often.
Press into bottom of ungreased 8" square baking pan.
Bake 15-20 minutes or until edges are lightly browned.
2Combine all filling ingredients except powdered sugar in a bowl. Beat at low speed, scraping bowl often. Pour filling over hot, partially baked crust. Continue baking 15-20 minutes or until filling is set.
3Sprinkle with powdered sugar while still warm and again while cool. Cut into bars to serve.