INGREDIENTS
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Ingredients
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1 pound (454 grams) unsalted butter, cut into chunks, at room temperature
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1 1/3 cups (262 grams) sugar
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1 teaspoon fine sea salt
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2 large egg whites, at room temperature
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1 tablespoon vanilla extract
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4 cups (544 grams) flour
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Sanding sugar, for sprinkling (optional)