Ultimate Lemon Squares Recipes

Steps:

• Preheat the oven to 350 degrees F. Line a 9-by-13-inch baking pan with foil, leaving an overhang on 2 sides; spray lightly with nonstick cooking spray. Set aside.
• For the crust: Add the flour, cornstarch, confectioners' sugar and salt to the bowl of a food processor and pulse 10 times until combined. Add the cold butter and pulse until the mixture looks like coarse sand, about 30 times. (The dough will not come together in one mass.) Sprinkle the mixture evenly in the prepared pan and lightly pat it down. Bake, rotating the pan halfway through, until golden brown around the edges, 20 to 25 minutes.
• For the filling: Combine the eggs, yolks, sugar, flour, salt and lemon juice in a medium saucepan. Whisk continuously over medium heat, occasionally scraping down the sides and edges of the pan with a rubber spatula, until simmering and thickened, 4 to 5 minutes. Remove from the heat and whisk in the lemon zest and butter until combined.
• Lower the oven temperature to 300 degrees F. Pour the filling over the crust and bake until just set, 12 to 15 minutes.
• Place on a wire rack to cool to room temperature, then refrigerate until cold, about 2 hours.
• Use the foil overhang to lift the bars from the pan. Remove the foil and slice into squares. Dust with confectioners' sugar just before serving.

Steps:

• Preheat oven to 350 degrees F (175 degrees C).
• In a medium bowl, blend together softened butter, 2 cups flour and 1/2 cup sugar. Press into the bottom of an ungreased 9x13 inch pan.
• Bake for 15 to 20 minutes in the preheated oven, or until firm and golden. In another bowl, whisk together the remaining 1 1/2 cups sugar and 1/4 cup flour. Whisk in the eggs and lemon juice. Pour over the baked crust.
• Bake for an additional 20 minutes in the preheated oven. The bars will firm up as they cool. For a festive tray, make another pan using limes instead of lemons and adding a drop of green food coloring to give a very pale green. After both pans have cooled, cut into uniform 2 inch squares and arrange in a checker board fashion.

Steps:

• Preheat the oven to 350 degrees F.
• For the crust, cream the butter and sugar until light in the bowl of an electric mixer fitted with the paddle attachment. Combine the flour and salt and, with the mixer on low, add to the butter until just mixed. Dump the dough onto a well-floured board and gather into a ball. Flatten the dough with floured hands and press it into a 9 by 13 by 2-inch baking sheet, building up a 1/2-inch edge on all sides. Chill.
• Bake the crust for 15 to 20 minutes, until very lightly browned. Let cool on a wire rack. Leave the oven on.
• For the filling, whisk together the eggs, sugar, lemon zest, lemon juice, and flour. Pour over the crust and bake for 30 to 35 minutes, until the filling is set. Let cool to room temperature.
• Cut into triangles and dust with confectioners' sugar.

Steps:

• Preheat the oven to 325 degrees F and adjust rack to center.
• Put the butter, flour, confectioners' sugar, and salt in a food processor, and pulse in short intervals until the mixture is crumbly and resembles small peas. Add the cold egg yolk and water to the mixture, and pulse until just mixed. Place the dough on a floured surface, knead just a few times, and form into a disk. Wrap in plastic, and keep in the refrigerator until cold, about 30 minutes.
• When the dough is cold, roll it out on the floured work surface, and cover the bottom of a 9-by-13-inch pan with it. Bake for 20 minutes, or until lightly golden. Remove, and let cool slightly.
• Whisk together the eggs, sugar, flour, baking powder, lemon juice, and zest in a bowl. Pour the filling over the hot crust.
• Bake for 30 minutes, until the lemon center sets. Remove from the oven, cool completely, dust with confectioners' sugar, and cut into squares.

Steps:

• Heat oven to 350 degrees. In a medium bowl, whisk together two cups flour, 1/2 cup confectioners' sugar and salt. Add melted butter and stir to thoroughly combine. Spread with clean hands in an even layer into a 9-by-13-inch pan and bake for 25 minutes.
• Meanwhile, in a medium bowl, whisk together eggs, granulated sugar, lemon juice, baking powder and remaining flour. Pour onto the hot baked shell and bake for an additional 20 to 25 minutes, or until just set. Using a small, fine meshed sieve, sift remaining confectioners' sugar on top when cool. Cut into equal bars.