My grandma's fudge recipe calls for a quart of marshmallow fluff. They only had 7.5 oz containers at the store. I know the conversion for quarts to liquid ounces, but I am assuming the fluff is comnsidered dry. I exhausted my Googling and checked the Fluff site. Their FAQs stated 7.5 oz is about 2.5 cups but I still am not sure how that would translate. Thanks in advance!