You can't go wrong with Lemon Squares. They are great cookies!
2 c. flour
1 c. butter, softened
1/2 c. powdered sugar
4 eggs
2 c. sugar
1 t. baking powder
1/2 t. salt
4 T. lemon juice (Fresh squeezed lemon juice is the best tasting.)
Mix, flour, butter and powdered sugar. Press into a 9x13 pan. bake at 350 degrees for 20 minutes. Meanwhile, beat the remaining ingredients for 3 minutes or until fluffy. As soon as the crust baking time is up, pour lemon mixture over hot crust. This is the secret to a delicious lemon square cookie. Bake for 25-30 minutes longer. Cool. Cut into 1 1/2" squares.