INGREDIENTS
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Cookies
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1 1/2 cup all-purpose flour
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1/2 teaspoon coarse salt
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3/4 cup unsalted butter
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3/4 cup confectioners sugar
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1 large egg
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Filling
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1/4 cup unsalted butter
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2/3 cup confectioners sugar
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1 pinch coarse salt
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1/4 cup dulce de leche
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Glaze
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6 ounces semisweet chocolate
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1 tablespoon unsalted butter