INGREDIENTS
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1 3/4 cups flour
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1 3/4 cups sugar
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3/4 cup unsweetened cocoa powder
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2 teaspoons baking soda
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1 teaspoon baking powder
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2 eggs
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1 cup brewed coffee, cooled
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1 cup buttermilk
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1/2 cup vegetable oil
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1/2 teaspoon vanilla extract
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1/2 cup sugar
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1/3 cup cocoa
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3 tablespoons cornstarch
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pinch of salt
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1 cup Kahlua, divided
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1 1/4 cups milk
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1 tablespoon butter
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1/3 cup milk
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1/3 cup butter, softened
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1 1/4 cups sugar
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1 cup semi-sweet chocolate chips