Marshmallows

OK a couple of quick questions:
1: Do they bake the marshmallows? Or do they just mix a bunch of stuff together and it just becomes marshmallows?
2: Once the marshmallows are created, are they one long roll that is cut up into little bitty marshmallos? Or are they made as individual entities?
3: Mini-marshmallows…big marshmallows made small? How?

Good site.