INGREDIENTS
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1 package graham crackers
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1 cup unsalted butter, softened
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1 cup white sugar
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1 cup light brown sugar
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1 cup Dutch-process cocoa
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1 teaspoon salt
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1 teaspoon baking powder
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2 teaspoons vanilla extract
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4 large eggs
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1 1/2 cups all-purpose flour
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3 cups miniature marshmallows