INGREDIENTS
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3 cups all purpose flour
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2 teaspoons baking soda
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3/4 teaspoon salt
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1 cup plus 2 tablespoons cocoa powder
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1 1/2 cups boiling water
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3/4 cup whole milk
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2 teaspoons vanilla
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1 1/2 cups unsalted butter, room temperature
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1 1/2 cups firmly packed dark brown sugar
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1 1/2 cups granulated sugar
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6 large eggs