It cooks potatoes and rice, even brown rice in minutes. Beans are no problem as long as you don't overfill the pot. Remember that beans swell. The PC shouldn't be over 2/3rds full. Foaming foods can clog the pressure release tubes. This can cause dangerous pressures.
Sauces that require hours of simmering are done in a half hour. I've made flan, and steamed puddings in my PC. Anything that can be made in a slow cooker, or by braising low and slow can be cooked in a fraction of the time in a PC. I've heard that breads can made in the pressure cooker, but haven't done it myself. Soups, boiled dinner, pilafs, pasta, sauces, veggies, stews, all can be cooked in a pressure cooker.
Large pressurised cookers can be used for canning. These are usually called pressure canner/cookers, and are a required item when canning non-acidic foods, like meat, most veggies, salsa, many fruit preserves, canned peaches, canned apples, etc.
I could go on, but why. I think you get the picture. The pressure cooker is a very versatile tool. But don't try to pressure fry in them. You need special pressure fryers for that task.
Seeeeeeya; Chief Longwind of the North
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