Add the water to the bottom of the instant pot insert. Place the trivet down, then add the cauliflower florets. Place the butter in the center of the cauliflower

Place the lid on the instant pot and set to sealing

Turn to manual pressure for 0 minutes

Do a quick release after the 0 minute countdown is over

After the pin has dropped, remove the instant pot lid and remove the trivet

Salt the cauliflower to taste and serve immediately