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1
In the bowl of a mixer fitted with a paddle attachment, combine the flour, salt, and sugar.
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2
Mix for 1 minute.
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3
Add the butter and mix just until the mixture resembles coarse crumbs.
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4
Stir the water and vinegar together, then gradually add to the flour mixture.
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5
Mix at medium speed just until a dough forms.
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6
Do not over-mix.
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7
Divide the dough in 2 and shape into round, flat disks on sheets of waxed paper.
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8
Wrap separately and refrigerate for 30 minutes.
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9
On a lightly floured surface, roll the dough with a lightly floured rolling pin into a large circle about 1/8-inch thick.
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10
Place your pie plate upside down on top and trim with a sharp knife, leaving about 2 inches extra dough all the way around.
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11
Roll the dough circle up onto your rolling pin, then unroll it into the pie plate; or, fold into quarters, transfer to the pie plate, and unfold.
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12
Gently press the crust into place, turning any excess dough hanging over underneath to create a thicker edge.
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13
Press the edge with the back of a fork to create a decorative edge.
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14
Repeat with the other piecrust and leave covered for 30 more minutes.
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15
Preheat the oven to 375 degrees F. Line each crust with a sheet of regular-weight aluminum foil, then pour in about 3/4 pound dried beans or pie weights.
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16
Bake the crusts 25 to 30 minutes, just until dry and set - then remove the foil and beans.
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17
Bake another 10 to 15 minutes or until golden brown, checking frequently to prevent over-baking.
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18
Remove from the oven immediately and let cool on wire racks.
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19
Banana Cream Filling: Combine the milk, salt, and vanilla bean in a non-aluminum pan and heat, stirring occasionally.
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20
As soon as the mixture begins to boil, turn off the heat and stir the mixture for 1 minute.
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21
Whisk the egg yolks and sugar together until thick and pale yellow, then gradually whisk in the cornstarch.
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22
Gradually whisk in half of the hot milk mixture.
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23
Pour the yolk-milk mixture back into the saucepan with the milk mixture and cook, whisking frequently, until the mixture boils and begins to thicken.
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24
Reduce the heat to medium-low and cook, stirring, about 5 minutes more, until the mixture no longer tastes starchy.
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25
The mixture should become very thick, like a set custard.
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26
When cooked, turn off the heat.
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27
Stir in the butter until it melts completely and fold in the bananas.
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28
Pour the filling into the pre-baked pie shells.
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29
Push the banana slices below the surface to prevent them from browning, then smooth the tops.
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30
Cover with plastic wrap, gently pressing the plastic wrap against the surface to prevent a skin from forming.
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31
Refrigerate at least 7 hours or overnight, and serve with whipped cream.