"Dark Chocolate Brown Sugar Cookies have the perfect chewy texture on the inside with just a bit of crisp on the outside...."
INGREDIENTS
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1/2 cup unsalted butter (at room temperature)
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3/4 cup brown sugar (light or dark brown sugar)
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1 large egg (at room temperature)
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1 teaspoon pure vanilla extract
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1 and ½ cup all-purpose flour
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1/2 cup unsweetened dark cocoa powder (like Hershey's Special Dark (regular cocoa powder or Dutch-processed may be substituted, but have a slightly different taste))