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1
To make the vanilla pastry cream, heat the half-and-half and salt in a small saucepan over medium heat until simmering-just before the boiling point-stirring occasionally.
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2
Meanwhile, in a medium heatproof bowl, whisk together the egg yolks and sugar until creamy. Add the cornstarch to the egg mixture and whisk until the mixture has thickened and has become a light pale yellow color.
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3
When the half-and-half begins to simmer, remove the pan from the heat and slowly pour the milk mixture into the egg yolk mixture, whisking constantly. Return the mixture to the pot and place over medium heat. Whisk constantly until the mixture has thickened and bubbles start to form on the surface, about 2-5 minutes.
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4
Remove from the heat and whisk in the butter and vanilla. Strain the pastry cream through a fine mesh sieve set over a medium bowl. Press plastic wrap directly on the surface, and place in the refrigerator to chill completely, at least 2 hours.
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5
While the pastry cream is chilling, make the pate choux. Preheat the oven to 400u00b0F. Line 2 baking sheets with parchment paper or silicone mats, set aside until needed.
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6
In a small saucepan, add the milk, water, butter, and salt, and set over medium-high heat. Heat up the mixture until it begins to boil, whisking occasionally. Remove the pan from the heat and, with a wooden spoon, stir in the flour. Return the pot to stove over medium heat, and stir until the dough starts to form a ball and pulls away from the sides of the pan.
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7
Transfer the dough to the bowl of a stand mixer fitted with the beater attachment. Beat the mixture on medium speed for 1 minute, and then add the eggs, one at a time. Continue beating for 20 more seconds until the eggs are fully incorporated and the pastry dough is smooth.
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8
Place the dough in a pastry bag fitted with a 1/2-inch round tip. Pipe 2 1/2-inch-long eclairs on the prepared baking sheets. Bake the pastries until they turn golden brown, about 20-25 minutes. Do not open the oven while the eclairs are baking! Remove from the oven and immediately transfer to a cooling rack to cool completely.
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9
To assemble the eclairs, carefully split the eclairs in half lengthwise. Place the pastry cream in a piping bag and pipe a large dollop of the pastry cream on the bottom of each eclair. Top with the top half of the eclair. To finish, either drizzle with melted chocolate or sprinkle with confectioners sugar. Enjoy!
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10
These last up to 7 days in a sealed container in the refrigerator.
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11
Eclair recipe adapted Martha Stewart. Pastry cream adapted from Annie Eats, who adapted it from Baking Illustrated.
