Instant Pot Vietnamese Pork Stew

coconut oil, avocado oil, or ghee

thinly sliced shallots

shiitake mushrooms, stemmed and cut in half (or into quarters if large)

quarter-sized slices peeled fresh ginger

garlic cloves, smashed and peeled

pork shoulder, cut into 2-inch cubes

coconut water

fish sauce, and more to taste

large carrots, peeled and cut into ½-inch diagonal slices

fresh cilantro leaves

scallions, thinly sliced