Using the sauté function, fry the bacon until golden and crispy. If skipping bacon, proceed to the next step.
To the bacon fat (or add olive oil if not using bacon), add onion, carrot, and leek. Sauté until softened. Add garlic and sauté briefly. Pour in the white wine and cook until the alcohol evaporates.
Add frozen peas and half of the amount of vegetable broth ( so add only 2 cups)
Cancel the sauté function, close the lid, and cook on high pressure for 6 minutes.
Manually release the pressure, then blend until smooth. Gradually add more broth until you achieve your preferred consistency.
Adjust salt, season with pepper, and serve. If using, sprinkle bacon on top for an extra layer of flavor.