NYT Cooking: A simple dish of creamy, thin-skinned beans and broth on toast is easy to make, and a comfort to eat alone or feed a crowd. If you make the beans ahead of time, they can keep in the fridge for 3 days, but may need a splash of water added when you heat them up. The broth is a great way to make use of Parmesan rinds, if you happen to be saving those, but if you don’t have any lying around, you ca...