Preheat oven to 350 degrees. Line bottom and sides of a 13- x 9-inch pan with heavy-duty aluminum foil or parchment paper, allowing 2 to 3 inches to extend over sides; lightly grease foil.
Stir together 2 cups of flour and 1/2 cup powdered sugar. Cut in butter using a pastry blender or fork until crumbly. Press mixture onto bottom of prepared pan.
Bake at 350 degree for 20 to 25 minutes or until lightly browned.
Meanwhile, whisk eggs in a large bowl until smooth; whisk in granulated sugar, lemon zest, and lemon juice. Stir together baking powder and remaining 1/4 cup flour; whisk into egg mixture. Pour mixture over hot baked crust.
Bake at 350 degree for 25 minutes or until filling is set. Let cool in pan on a wire rack 30 minutes. Lift from pan, using foil sides as handles. Cool completely on a wire rack (about 30 minutes). Remove foil, and cut into bars; sprinkle with powdered sugar.
We instantly fell in love with the adorable Reindeer Gingerbread Cookies we found at TheSweetChick.com. Carole's recipe became our inspiration for our next Pinterest Test Kitchen Challenge. What You'll NeedYour...