"These bite-size sandwich cookies are perfect for a Halloween party or a lunchbox treat...."
INGREDIENTS
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10.00 unsalted butter
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1.66 granulated sugar
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1.50 all-purpose flour
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1/2 cocoa powder
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1.00 baking powder
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1/2 baking soda
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1/2 coarse salt
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1.00 egg yolk
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1/4 cooled Caramel Sauce
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3/4 unsalted butter
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1.50 confectioners' sugar