The problem is that when you make a marshmallow hard, it's not really a marshmallow any more - more of an aerated confection. You can make marshmallows harder by heating the sugar syrup (that is poured and beaten into the egg whites) to a hotter stage than suggested (at least 10 -20 degree's Celsius hotter, without caramelization occurring, if possible) . This will result in harder marshmallows, but I'm not entirely sure how hard they will turn out to be (or how hard you want to make them, for that matter).
The issue with making marshmallows hard is that the egg whites (that are the essence of the marshmallow) do not become "hard" when cooked by having sugar syrup poured over them. (They only become hard when combined with sugar and baked for a long time in a cool oven, such as when making meringue). You could try experimenting by drying out some of the final marshmallow's in a low temperature oven.
make it go stale or freeze it
The freakin marshmallows duhhh
They have to be freeze-dried.
just freeze the marshmallows then bake them I have tried it.
smores
No.
A giant marshmellow
What are you trying to make? You can put marshmallows in most anything and that is what you will have. Marshmallows in a biscuit. I can't believe this would make a good finished product, but I'm not the one eating it.
years ago a baker tried to make a new candy and that was when marshmallows were accidentally made. How cool is that!?
melt down the mini marshmallows and make it into a big one.
A marshmallow gets hard if you warm it on the fire and then you leave it out.......It will also get hard if you leave the bag of marshmallows outside open!!!
Nothing happens they just get hard. And taste bad. I think.
No, they will only make you fat.