Turn Instant Pot to sauté feature and add 2-3 T olive oil. After a minute, add in diced garlic and onion. Sautee both for 2-5 minutes, or until they start to soften and become fragrant.
While they are sautéing, dice your sweetpotatoes.
Add the remaining ingredients into the Instant Pot and turn off sauté function.
Give all of the ingredients a good mix and add to Instant Pot. Turn to pressure cook feature. Set for 3 minutes on high. Note that it may take 10-12 minutes before it starts cooking, as the Instant Pot heats up. the
After the timer goes off, quick release Instant Pot, open the vent and let steam out.
Remove the Instant Pot top. The sweetpotato chunks should be very soft. The mixture may look a little watery. Grab an immersion blender or Vitamix and blend the mixture until smooth. If soup is too thick at this point, you can add more broth or water. If soup is not sweet enough, add a bit more maple syrup.
Garnish with pumpkin seeds, sage or other options.