Pat the 4 lb chicken wings dry with paper towels, then season all over with kosher salt and freshly ground black pepper to taste.
Place the metal trivet inside the pressure cooker and pour in 1 cup water.
Arrange the seasoned wings on the trivet in a single layer or stacked so they sit securely and do not touch the lid.
Secure the pressure cooker lid, set the vent to sealing, select Manual/High pressure, and cook for 8 minutes.
When the cook time is up, perform a quick release according to your cooker's instructions, open the lid, and transfer the wings to a serving platter.
Garnish with white sesame seeds before serving.