Tangy and sweet all at once. These are easy to make, there are only 5 ingredients! I used a recipe from Martha's Favorite Cookie Recipes a booklet I received for free from a Martha Stewart Living subscription:
for cookie base
3/4 cup unsalted butter, softened
1 1/2 cups sifted all purpose flour
4 large eggs
5 tablespoons all purpose flour
2 cups sugar
3/4 cup freshly squeezed lemon juice
Preheat oven to 350 degrees. Combine butter, flour, sugar. Press mixture into unbuttered 9x13 inch baking pan. Bake until just brown, about 20 minutes. Remove from oven.
For topping, lightly whisk eggs. Sift together flour, sugar, add to eggs. Add lemon juice, stir and pour over partially baked base. Bake for 20 minutes more or until topping is firm. Chill before cutting.