Using the “sauté” feature, combine oil, onion, and garlic. Give it a good stir and when the onions are soft, combine the rest of the ingredients.
Put the lid on, seal the steam valve, and push “manual” then set the time for 12 minutes. When the pot beeps, you can do a quick release.
Note: depending on the temperature of your broth, it could take quite a while (up to 25 minutes) for your instant pot to come to pressure. If you add very hot broth, it will come to pressure much faster. Also, it’s completely fine to skip the sauté step and to transfer ALL ingredients to the pot at the same time, then push start. If you take the extra step to sauté the onions, they will have a slightly sweeter flavor.