1 1/2 c. ap flour (reserve 3 T. to add to filling)
1/2 c. powdered sugar
3/4 c. COLD butter
4 eggs, beaten
1 1/2 c. white granulated sugar
1 t. baking powder
1/2 c. lemon juice (fresh or bottled)
Preheat oven to 350F.
Combine flour & powdered sugar. Cut in butter until crumbly. Press onto bottom of a lightly greased 9x13 cake pan and bake for 13 minutes.
While it's baking, combine eggs, white sugar, baking powder, lemon juice and the reserved 3 T. flour and mix well. Pour over the baked crust and bake the entire thing for 20-25 minutes. Cool, sprinkle with powdered sugar if you'd like.
Store covered in the fridge but serve at room temp.