Prepare crust, press into quarter sheet pan and partially bake at 350 for 12 minutes;

For crust, combine with fingers or mixer to fine crumb stage:

2 cups all purpose flour
8 oz. unsalted butter
1 cup confectioner's sugar

Filling:

Mix together:

4 eggs
2 cups sugar

Add:
1 tsp. baking powder
1/2 tsp. salt
2/3 cup lemon juice

Pour into partially baked crumb crust and bake 15 minutes longer at 350.