INGREDIENTS
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For crust:
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1 1/2 cups graham cracker crumbs
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1/2 stick butter
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pinch of salt
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For cake:
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1 1/8 cups all purpose flour
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1/4 cup dark cocoa powder
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1 1/4 teaspoon baking soda
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1/2 teaspoon salt
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3/4 cup brown sugar
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1 egg
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1 teaspoon vanilla extract
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1/2 cup milk
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1/2 cup + 1 tablespoon heavy cream
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1/2 cup butter, melted
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2 tablespoons sour cream
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For topping:
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1 bag of large marshmallows