Seat glass pitcher on the base of the Instant Pot® Ace and add cannellini beans, vegetable stock, olive oil, yellow onion, garlic, Italian seasoning, and salt.
Secure and lock lid.
Choose the Puree •• program (2:56 minutes).
Once program has completed, carefully remove lid and stir in Parmesan cheese, basil, and pepper. This can also be done by pulsing for a few seconds, just enough to combine.
Serve warm or chilled, alongside crunchy vegetables, crackers, or pita chips. This is also great as a spread on grilled or toasted slices of baguette.