Dorie Greenspan's Most Extraordinary French Lemon Cream Tart

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Adapted from Dorie Greenspan's Baking: From My Home to Yours






Ingredients

 

  •     1 to 1-1/4 cups sugar
  •     Grated zest of 3 lemons
  •     4 large eggs
  •     3/4 cup fresh lemon juice (from 4-5 lemons)
  •     2 sticks plus 5 tablespoons butter (10 1/2 ounces) unsalted butter, cut into tablespoon size pieces, at room temperature.
  •     1 9-inch tart shell made with sweet tart dough, fully baked





Instructions


Step 1: Have a instant-read thermometer, a strainer and a blender or food processor at hand. Bring a few inches of water to a simmer in a saucepan.

Step 2: Put the sugar and zest in a large heatproof bowl that can be set over the pan of simmering water.

      
Step 3: Off the heat, rub the sugar and zest together between your fingers until the sugar is moist, grainy, and very aromatic. Whisk in the eggs, followed by the lemon juice.
 

Step 4: Set the bowl over the pan and start stirring with the whisk as soon as the mixture fees tepid to the touch. Cook the lemon cream until it reaches 180 degrees F.
 
Step 5: As you whisk- you whisk constantly to keep the eggs from scrambling- you’ll see that the cream will start out light and foamy, then the bubbles will get bigger, and then, as it gets closer to 180F, it will start to thicken and the whisk will leave tracks. Heads up at this point- the tracks mean the cream is almost ready. Don’t stop whisking or checking the temperature, and have patience- depending on how much heat you’re giving the cream, getting to temp may take as long as 10 minutes.

Step 6: As soon as it reaches 180 degrees F, remove the cream from the heat and strain it into the container of the blender (or food processor);
discard the zest.


Step 7: Let the cream stand, stirring occasionally, until it cools to 140 degrees F, about 10 minutes.

Step 8: Turn the blender to high (or turn on the processor) and, with the machine going, add the butter about 5 pieces at a time. Scrape down the sides of the container as needed as you incorporate the butter. Once the butter is in, keep the machine going- to get the perfect light, airy texture of lemon-cream dreams, you must continue to bend the cream for another 3 minutes. If your machine protests, and gets a bit too hot, work in 1-minute intervals, giving the machine a little rest between beats.

Step 9: Pour the cream into a container, press a piece of plastic wrap against the surface to create an airtight seal and refrigerate at least 4 hours, or overnight. (The cream will keep in the fridge for 4 days or, tightly sealed, in the freezer for up to 2 months; thaw it overnight in the refrigerator.)

Step 10: When you are ready to assemble the tart, just whisk the cream to loosen it and spoon it into the tart shell.



Step 11: Serve the tart, or refrigerate until needed.

Below is a picture of me and Dorie, the genius pastry chef who created the lemon tart recipe, in addition to many others that I've posted on my website.  She is adorable!





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