Spread the Love with Russell Stover's Valentine's Day Milk Chocolate Marshmallow Heart! A fluffy marshmallow center covered in our deliciously creamy milk chocolate. Each delicious 1.3 oz. individually wrapped heart is the perfect Valentine's Day treat. Share the love with Russell Stover - an American-made classic since 1923. Made from our hearts with tradition and passion, we are proud to be part of your sweet traditions and everyday indulgences.