Using the Sauté function on the Instant Pot, sauté onion until browned, about 10 minutes, adding small amounts of water to prevent sticking.
Add garlic and sauté for another minute of two.
Turn the sauté function off and add the remainder of the ingredients except for the corn and cook on high pressure for 6 minutes.
Release the pressure and stir in the corn and sprinkle with Faux Parmesan.
Place all ingredients in a dry blender or food processor fitted with the “S” blade and process until a powder. Will keep on the refrigerator for several months.