Whisk all ingredients together in a medium-sized bowl.
Place the trivet in the bottom of the pressure cooker pot.
Add the water.
Wrap the bottom of the spring-form pan with foil.
Pour the combined ingredients in the prepared pan.
Sprinkle on any additional cheese you may want on top.
Cover & place in the prepared pot.
Add the lid, set to seal & cook on manual for 35 minutes.
Natural release for 10 minutes & then quick release before removing from the cooker.
Allow to set for 10 minutes before removing the foil & the pan before serving.