Voila, your 5-ingredient lemon bar recipe is ready to be served. However, if you are baking this dessert in a 9 x 9-inch baking dish, the cooking time will be a few minutes less.
Line an 8- or 9-inch square pan with two perpendicular strips of parchment paper, leaving some overhang so baked lemon squares can be easily lifted from pan. In a large bowl, whisk together flour ...