This refers to an Instant Pot method for cooking cheesecakes, bread puddings, and frittatas—items that do not have a lot of liquid—or for cooking multiple dishes at the same time. There are two ways to do this: you can either pour water into the main stainless-steel pot and place the pan over the top to cook the dish. Or, you can cook the oof in the bottom of the main stainless-steel pot and insert a tall steam rack and place a bowl on top to cook another part of the dish.