Instructions

  1. For Crust: In a medium bowl, sift together flour and baking powder.
  2. Mix in butter, sugar, egg yolks and lemon zest until mixture forms dough.
  3. Pat the dough evenly into the bottom of a 9" springform pan.
  4. Chill dough in pan for 25-30 minutes.
  5. Preheat oven to 325 degrees F (165 degrees C).
  6. Bake in oven for 25 minutes, or until golden.
  7. For Filling: In a medium bowl, beat egg whites until stiff.
  8. Gradually stir in sugar and cornstarch; beat for 5 minutes.
  9. Fold currants into mixture and pour into warm crust.
  10. Bake in oven for 10 minutes, or until top is lightly browned.
  11. Cool completely before serving.