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1 cup + 2 tablespoonsunsalted butter, very soft
1/2 teaspoonsalt
1 3/4 cups + 2 tablespoonsall-purpose flour
1/2 cup + 2 tablespoonscornstarch
1/3 cupgranulated sugar
1/4 cupsuperfine or granulated sugar for topping
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Shortbread - Equipment List

Baking Dish
Mixing Bowls
Paring Knife

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Shortbread - Instructions

Many recipes include some kind of starch that contributes, along with butter, to the "shortness" of the
dough, which is where these cookies get their melt-in-the-mouth texture. Potato starch, cornstarch and
rice flour are among the possibilities. Rice flour gives a bit more crunch, while cornstarch is the
softest of all, making a particularly short and flaky cookie.

If the cold butter hasn't softened in time, put it into a saucepan and melt a portion of it. Then mix
the rest of the butter into the melted butter to get the very soft consistency needed. Just make sure
that you don't let too much of the butter melt.

Preheat the oven to 325 F. Butter a 6" x 10" glass baking dish.

Place the butter in a mixing bowl. The butter must be very soft-the consistency of mayonnaise or whipped
cream. Add the salt to the butter and mix well with a wooden spoon or whisk so that it dissolves
completely before you add the rest of the ingredients. Sift the flour and cornstarch together into a
bowl. Add the granulated sugar to the butter and mix just until combined. Add the flour mixture and mix

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Shortbread - Instructions Continued

just until a smooth dough forms.

Pat the dough evenly into the prepared baking dish. The dough should be no more than 2/3" deep. Bake
until the top and bottom are lightly browned, about 30 minutes. The middle of the shortbread should
remain light. Let cool on a wire rack until warm to the touch.

Sprinkle the shortbread with the superfine or granulated sugar. Tilt the dish so that the sugar fully
and evenly coats the surface and then tip out the excess sugar. With a very thin, sharp knife, cut the
shortbread into rectangular fingers about 1/2" wide and 2" long. If the cookies have become cold they
will not slice well, so they must still be warm to the touch at this point. Chill thoroughly before
removing from the baking dish.

The first cookie is difficult to remove, but the rest should come out easily with the aid of a small,
thin offset spatula. The cookies will keep in an airtight container in a cool place for up to 2 weeks.
Makes one 6" x 10" pan, about sixty 2" x 1/2" bars.

Elisabeth M. Prueitt and Chad Robertson, Tartine (Chronicle Books, 2006).

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