1 c. melted butter
1/4 c. powdered sugar
2 c. flour
Pinch of salt

Mix well. Press into an 11x15 inch pan and bake in a 350 degree oven for 15-20 minutes. While this is baking, mix:

4 eggs
2 c. sugar
4 tbsp. ReaLemon (comes in bottle)
1 tsp. lemon flavoring
4 tbsp. flour
1/2 tsp. baking powder

Mix well and pour over crust and return to oven and bake for 20 minutes at 350 degrees. Cut into squares. Bake in a cookie pan.