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1
Once the gougeres are mostly cool, but still just a bit warm, slice them in half horizontally, revealing the air-pocket within. Spread each half lightly with the Dijon-Chive butter. Place one folded slice of ham on the bottom of each gougere, and top with a small handful of baby arugula leaves and chive halves. Place the gougere lid on top, and
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2
, your perfect ham and cheese sandwich.
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3
Preheat the oven to 400u00b0F.
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4
To make pate a choux, or choux pastry, place the stick of butter and the cup of water in a medium sauce pot and put the lid on it. Bring to a boil. Take the pot off the heat, then add the salt, sugar, and flour all at once, and stir vigorously with a wooden spoon until the flour is absorbed into the butter-water mixture. Lower the heat to medium-low, and return the pan to the heat, stirring the dough continuously for about 30-60 seconds, until the dough comes away from the sides of the pot.
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5
Scoop the dough out of the pot and into a large mixing bowl. Let stand and cool for about 3 minutes. Then add one egg at a time, and use a hand mixer to incorporate the eggs into the dough. At the very end, add in 3 ounces of Gruyere and 1 once of Parmesan.
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6
Use an ice cream scoop to mound the gougeres onto a parchment-lined baking or cookie sheet. You should end up with 8-10 gougeres, depending on your scoop. Then top with the remaining Gruyere and Parmesan, and sprinkle with just a touch of coarse cracked black pepper.
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7
Bake the gougeres at 400u00b0F for 10 minutes. Then lower the heat to 350u00b0F and bake another 35-40 minutes, until they are golden, puffed, and hard to the touch. You don't want to take them out too early--if you have to return them to the oven, chances are, they'll deflate a bit. Place the gougeres on a cooling rack.
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8
Stir everything together until combined.
