These are very rich so you will want to cut them in small pieces. They keep well (if no one eats them first!) either in the fridge or the freezer. I've seen other recipes for these but I find that this method works the best at making them smooth and creamy. The original recipe calls for walnuts so I have put them in here but I never use them. My great aunt and my mother made these often, also without the nuts. We like to use the coloured marshmallows because they look prettier. They have always been favourites with the kids (of all ages!). NOTE: preparation time includes cooling time