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Prep time
10 hours 20 minutes
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Makes
3 dozen cookies
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Ingredients
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302 grams
unsalted butter
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93 grams
confectioners' sugar
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3.5 grams
kosher salt
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302 grams
all-purpose flour
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1/8 cup
regular or raw sugar, for sprinkling
Directions
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Cut the cold butter and reserve at room temperature to temper slightly. Line a 13x9-inch baking sheet or baking dish with parchment paper.
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Mix the confectioners’ sugar, salt, and flour in a mixer fitted with a paddle attachment. Mix for a few seconds to combine the dry ingredients.
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Add the cubed butter and mix on low speed until a smooth dough is formed and butter is fully incorporated. At first, the dough will look extremely flaky and dry; let it keep mixing and it will eventually come together into a dough.
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Dump the dough into the baking sheet ordish and spread it evenly to the corners. Cover with plastic wrap and chill overnight.
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The next day, heat the oven to 300°F. Dock the dough every inch or so with a fork. Bake until the shortbread is golden brown, 60-75 minutes.
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Remove the pan from the oven and let cool for 5 minutes. Turn the shortbread out onto a cutting board, and slice into 4-inch x ¾-inch slices. Sprinkle with raw sugar and transfer to a baking rack to cool completely. Store in airtight containers.
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