tony. bread is actually amazingly robust. although you have lots of recipes, recipes aren't as important as understanding the fundamentals of what's going on. and once you do, it's, it's really quite forgiving. >> anthony: few things are more mysterious and unknowable than the bagel. can one perhaps create the perfect bagel, with toppings that don't fall off? as a new yorker, i'm inclined to say no. but now, i'm not sure. and, what's this? bread in a jar? but, but -- what? >> anthony: what is going on here? >> nathan: this is the kind of sick thing we do. we wondered, could you can bread? by god, you can. this is rum babas, which is a bread, in the sense it uses yeast. >> anthony: yes. nathan: and we canned them. and now watch what happens when we open it up.