Place all ingredients in your Instant Pot
Close Instant Pot lid
Select MANUAL (High Pressure) for 5 minutes
When the Instant Pot has come up to pressure and completed the 5 minutes of pressure cooking, you can do a manual release of the pressure
Carefully transfer all content from your Instant Pot to your Vitamix or blender. If you do not have a counter top blender, you can use a hand immersion blender for this step.
Blend content for 1.5 to 2 minutes or until the sauce is very creamy. If the mixture is too thick, you can add 1/4 cup of milk (plant or regular) to thin it out.
You can serve this cheesey sauce on your mac and cheese, use it as a dip for fries or veggies or even use it as a sauce for your chicken or steak. I bet this sauce would work really well in a submarine sandwich or in burritos.
Refrigerated sauce can be used cold as a dip