Okay, I love lemon bars, and these look so yummy I just had to put them here, They are from a site called Bakerella
You should go check her out!

Lemon Bars

Crust:
1 cup butter
1 3/4 cup flour
2/3 cup confectioner's sugar (plus more for dusting)

Topping:
1 1/2 cup plain sugar
1/4 cup flour
1 tsp baking powder
4 eggs, slightly beaten
1/2 cup lemon juice


Preheat oven to 350 degrees
Grease and flour a 9 X 13 pan

To make crust:

• In a medium bowl, whisk together flour and confectioner's sugar
• Cut in butter until combined and crumbly.
• Press mixture into bottom of pan.
• Bake for 20 minutes or until golden.

To make topping:

• While crust is baking, prepare topping.
• In a larger bowl, add sugar, flour, and baking powder.
• Then add slightly beaten eggs and lemon juice.
• Mix well and pour on top of warm baked crust.
• Bake for 20-25 minutes.
• When cool, dust with confectioner's sugar and refrigerate.
• Cut into bars and enjoy them cold!