Scrub sweet potatoes well and poke a few holes with a fork.
Place one cup of water in Pressure Cooker cooking pot and place trivet. Add sweet potatoes to trivet.
Lock on lid and close Pressure Valve.
Cook on High Pressure for 15 minutes (or longer, if using large sweet potatoes).
When Beep sounds, allow a Natural Pressure Release.
When all pressure is released, remove sweet potatoes and slice about 1/2 inch thick.
Heat cast iron skillet over medium high heat. When skillet is hot, add Ghee (or other oil if using). Pan sear until both sides are nicely browned. Sprinkle with salt and pepper.
Notes
Medium Sweet Potatoes - 15 minutes Large Sweet Potatoes - 18 minutes