INGREDIENTS
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1 cup butter, at room temperature
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1 1/2 cups sugar
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2 eggs
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1 teaspoon vanilla
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2 cups flour
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1/2 cup cocoa powder
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1 teaspoon baking soda
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1/4 teaspoon salt
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1/4 cup marshmallow fluff
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1 cup chocolate chips
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1 cup mini marshmallows