INGREDIENTS
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2 eggs
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1 cup sour cream
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1 cup strong brewed coffee, cooled
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1 cup heavy cream
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1 teaspoon pure vanilla extract
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3 cups unbleached all-purpose flour
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1/2 teaspoon baking soda
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1 tablespoon baking powder
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1 1/3 cups unsweetened cocoa powder
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1/2 teaspoon salt
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1 1/2 cups sugar
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1 cup (2 sticks) cold butter, cut into 1/2-inch cubes
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1 1/2 cups chocolate chips