This is one of my mom's favorite treats.
Crust:
1 c. butter, softened
1/2 c. powdered sugar
2 c. flour
Dash of salt (only if you use unsalted butter)
Combine all ingredients and mix well. I use a pastry blender for all my crusts to make them extra soft and flaky. Press into an ungreased 9x13 inch pan. Bake at 350 degrees for 15 minutes of until lightly browned around the edges.
Filling:
4 eggs
2 c. sugar
1/4 c. flour
6 Tab. lemon juice
Beat eggs in a mixing bowl. Combine flour and sugar and add to eggs. Add lemon juice and beat until smooth and fluffy. Pour over slightly cooled crust. Return to oven and bake for 25 minutes or until set. The top will look golden brown. Do not over cook! Dust with powdered sugar while it s still warm. Cool completely before cutting into squares.