INGREDIENTS
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1 1/4 cups butter, room temperature
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2 cups confectioners’ sugar
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1/3 cup unsweetened cocoa powder
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1/4 tsp salt
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1/4 cup sour cream or yogurt
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1 tsp vanilla extract
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2 1/4 cups all purpose flour
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2 cups chocolate chips
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approx. 1/3 cup cocoa powder (for rolling)
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approx. 2/3 cup confectioners’ sugar (for rolling)