Whole Lemon Tart Food

TARTEST LEMON TART

Steps:

• Crust: Put the flour, confectioners' sugar, and salt in a food processor and pulse a couple of times to combine. Scatter the pieces of butter over the dry ingredients and pulse until the butter is coarsely cut in. Stir the yolk, just to break it up, and add it a little at a time, pulsing after each addition. When the yolk is in, process in long pulses-about 10 seconds each-until the dough, which will look granular soon after the egg is added, forms clumps and curds.
• Turn the dough out onto a work surface and, very lightly and sparingly, knead the dough just to incorporate any dry ingredients that might have escaped mixing. This is done by smearing the butter pieces into the flour using the heel of your hand-a French technique called "fraisage."
• Flatten dough into a disc and place between two pieces of parchment paper. Using a rolling pin, roll out the dough, rotating it ⅛ of a turn at a time and rolling until it's just bigger than the tart pan.
• Butter the tart pan. Press the dough evenly over the bottom and up the sides of the pan, using all but one little piece of dough, which you should save in the refrigerator to patch any cracks after the crust is baked. Using a fork, give the crust a few pricks and freeze for at least 30 minutes before baking.
• Parbake the crust: Preheat the oven to 375 degrees F. Butter the shiny side of a piece of aluminum foil and fit the foil tightly against the crust. Add pie weights on top of the foil to keep the crust flat as it bakes. Put the tart pan on a baking sheet and bake the crust for 25 minutes.
• The filling: Cut the lemons into small pieces and remove the seeds. Put the lemons and sugar in a blender or food processor and pulse, blending and scraping down the sides until you have a smooth mix. Add the remaining filling ingredients and pulse and blend on low speed until the filling is homogeneous. Tap the bowl on the counter several times to "de-bubble" the filling as much as possible.
• Remove the tart shell from the oven and carefully remove the foil and pie weights. Place back in the oven for 8-10 minutes to lightly brown. Remove the tart and patch any cracks with the leftover dough. Cool and reduce oven temperature to 325 degrees F.
• Bake the tart: Stir the filling, then pour it into the tart shell. Bake for 20 minutes, then increase the oven temperature to 350 degrees F and bake for an additional 25-30 minutes. (Total baking time is 45-50 minutes.) When the tart is properly baked, it should be set, although perhaps still shaky in the center, and most of the top will have formed a light sugary crust. (Don't be alarmed if the tart has bubbled over the edge of the tart-that's okay.) After cooling the tart to room temperature, set the tart on top of a sturdy can so the ring can drop away. Place on a dish and serve.

WHOLE-LEMON TART

Steps:

• Center a rack in the oven, and heat it to 325 degrees. Place the crust on a baking sheet lined with parchment paper.
• Cut the lemon into thin slices, and discard the seeds. Toss the slices and sugar into the bowl of a food processor, and whir for 3 minutes, scraping the bowl as needed, until smooth. With the machine running, add the eggs, one at a time, and then, when they're incorporated, the cornstarch followed by the melted butter. Remove the bowl, and rap it against the counter a few times to pop some of the bubbles in the mixture. Pour the batter into the crust.
• Bake the tart for 45 to 55 minutes, until the filling is puffed and lightly browned - don't be concerned if the top cracks. If you tap the side of the pan, the filling should seem firm; if it jiggles just the least bit in the center, that's fine. A toothpick poked into the center - be gentle - will come out clean. Transfer the tart on the baking sheet to a cooling rack. Leave until it reaches room temperature. The tart can be served now or chilled (it will keep in the refrigerator overnight).
• Just before serving, dust the top with confectioners' sugar.

MEYER LEMON TART

Steps:

• Make the crust: in the bowl of a mixer, cream together butter and sugar. Add egg yolk and the milk, and beat to combine. In a medium bowl, combine the flour with salt. Slowly add the flour to the butter mixture, stirring until completely blended. Gather dough into two balls. Freeze one for future use, chill the other for at least 1 hour.
• Heavily butter a 10-inch tart pan with a removable bottom. Press the dough into the pan and trim the edges. Prick the bottom with a fork, and place the shell in the freezer for 30 minutes.
• While shell is in freezer, prepare lemon curd. Grate zest of lemons. Squeeze lemons to extract 1 cup of juice. In a medium nonreactive saucepan, combine juice and zest. Add remaining sugar, butter and salt. Place over medium heat, stirring once or twice, until sugar is dissolved and the butter is melted.
• In bowl of a mixer, combine eggs and egg yolks until blended. Slowly add hot lemon mixture to eggs until blended. Return mixture to saucepan, and place over low heat. Whisk constantly until mixture thickens to a pudding-like consistency; do not allow it to boil. Remove from heat, and continue to stir to stop the cooking. Strain lemon curd into a bowl. Adjust sugar to taste; the curd should be tart, but may need additional sugar if the lemons were unripe. Cover with plastic wrap, pressing it right against the surface of the curd. Allow to cool.
• Heat oven to 375 degrees. Remove tart shell from freezer, and bake until lightly golden, 20 to 25 minutes. Remove from heat and allow to cool slightly. Spoon lemon curd into tart shell, and smooth the top. Bake until filling has puffed around the edges, about 30 minutes. Cover edges with foil, if necessary, to prevent over-browning. Cool to room temperature before serving.

CLASSIC LEMON TART

Steps:

• Make the crust: In a small saucepan over medium heat, melt the butter. (If you like, you can let the butter cook until it browns and smells nutty, 2 to 4 minutes longer.)
• Whisk together flour, confectioners' sugar and salt in a medium bowl. Drizzle in melted butter and, using a spatula, mix until well combined. Press this into the bottom and up the sides of a 9-inch tart pan, using a measuring cup if you like to flatten the tart shell and make sure it's even. Place in the freezer for at least 30 minutes and up to 2 months (wrap in plastic if storing for more than 4 hours).
• Heat oven to 350 degrees. Line tart dough with a piece of foil or parchment paper and fill with pie weights, dry beans or rice. Bake for 15 minutes, then remove the foil and weights and continue to bake until the crust is very lightly golden at the edges and baked through on the bottom, 10 to 15 minutes longer. Transfer to a rack to cool. (Tart shell can be made up to 1 day ahead and kept at room temperature.)
• Make the curd: Put butter, lemon zest, lemon juice and sugar in a heavy saucepan over medium heat. Cook until butter is melted and mixture is hot, 4 to 5 minutes.
• In a medium bowl, beat together eggs, yolks and salt. Whisk the hot mixture gradually into the eggs to temper them. Then pour everything back into the saucepan and return to medium-low heat. Cook, whisking constantly, until mixture thickens enough to coat the back of a wooden spoon (170 degrees; do not overcook, or it will curdle), about 5 minutes. Pour through a fine-meshed sieve into a bowl. Taste and add a bit more sugar if you like. It should taste tart but balanced.
• Spread the curd (it's OK if it's still warm) into the tart shell, spreading it evenly with a small offset spatula or butter knife. Return to the oven to bake until the curd is just set along the edges but still jiggly in the center, about 7 to 15 minutes. (It will continue to firm up as it cools.) Transfer back to the wire rack to cool completely, at least 2 hours, before serving. If the curd still looks a little loose after cooling, you can chill the tart for an hour or two before serving. Note that it's a soft curd but shouldn't be runny.