Put prepared potatoes in the Instant Pot.
Pour enough water over the potatoes to just cover them.
Secure the lid and cook on high pressure for 10 minutes.
Quick release the pressure and test the potatoes for doneness - a fork inserted in the potato should easily release.
When potatoes are done, mash the potatoes to your desired consistency.
Stir in butter, half and half, sour cream and House Seasoning Blend.
You can add more half and half to reach your desired consistency.