INGREDIENTS
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1 c. butter, at cool room temperature
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1 c. granulated sugar
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1/2 unsweetened cocoa powder
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1 1/2 tsp. baking powder
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1/2 tsp. salt
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1 large egg
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1 tsp. vanilla extract
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2 1/2 c. all-purpose flour
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1 (12 oz.) bag semisweet chocolate chips
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1 (12 oz.) bag dark or bittersweet chocolate chocolate chips
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1/4 c. shortening
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1/2 tsp. peppermint extract
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Crushed peppermint candy