Soak pinto beans for at least 8 hours. I do this in the Instant Pot itself. Drain beans and rinse before cooking.
To Prepare
In an Instant Pot, combine beans with all of the above ingredients (onion, garlic, bay leaf, cumin, bullion, salt) and 3 cups water. Add only 2 cups water if using vegetable broth instead of vegetable bullion.
Add 1 tsp salt. You can add more later.
Pressure cook on manual for 30 minutes with the pressure release valve in the “sealing” position. Allow a 10 minute natural release.
Release any remaining pressure and carefully remove lid. Adjust salt to taste.
Pulse using an immersion blender until you reach the desired consistency.
Add more water if you feel it is too thick, or simmer for a few additional minutes if you feel it is runny. The beans tend to thicken up more over time.
Garnish with cilantro or white onion and serve!
Notes
If you do not pre-soak the beans, set the instant pot on manual for 45 minutes, with a natural release.