INGREDIENTS
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1/2 cup butter, softened
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1 1/2 cup granulated sugar
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2 eggs
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1 3/4 cup all purpose flour
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1/2 cup dark chocolate unsweetened cocoa powder
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1/2 tsp kosher salt
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1 tsp baking soda
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1 tsp baking powder
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1/2 cup brewed coffee, strong
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1/2 cup buttermilk
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1 cup unsalted butter, softened
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8 cup powdered sugar
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1/2 cup skim milk
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1/8 tsp peppermint extract
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1 bag (10oz) dark chocolate and mint morsels *see note below