Finely dice onion, garlic and leek.
Turn on saute mode on the instant pot and add olive oil, onion, garlic and leek.
Cook for a couple of minutes until onion is soft and translucent (but not brown).
Add diced potatoes, veggie broth, salt and pepper (the amount of salt needed will depend on how salted your vegetable stock is).
Close the lid and make sure that the release handle is set to “sealing” position (see step-by-step photos). Pressure cook on high for 10 minutes (it will take the instant pot about a minute or so to start).
Quick release the steam by pushing the pressure release handle to “venting” using a knife or similar so that the hot steam doesn’t burn your hand.
Once all the steam is released, open the lid.
Use an immersion blender to blend about ½ of the soup – don’t bend too much to make sure that there are some chunks of potatoes left.
Then pour it back to the remaining soup in the instant pot.
Load with toppings of choice and enjoy!