Sift flour and powdered sugar together. Cut in butter until well blended. Press mixture over bottom of a 9 by 13 by 2 inch pan.
Bake about 25 minutes at 300°F until lightly browned. Combine remaining ingredients and spread on top of the baked crust.
Bake at 350°F for 25 to 30 minutes. Sprinkle with powdered sugar.
Makes 12 servings.
Submitted by: katerina xenikis