Place the cauliflower florets in a steamer basket. Set it inside the Instant Pot and pour in the water. Close the lid of the Instant Pot. Set the valve to sealing position.
Press the Pressure Cook or manual button and set the cook time to 0 (zero) minutes on high pressure. It will take about 5 minutes for the pot to come up to pressure. When the time is up, do a quick pressure release and carefully remove the steamer basket from the pot.
Notes
Use cold water.
Cook for 1 minute for softer broccoli (this can make it really soft).
If your steamer basket does not have legs to elevate it out of the water, then place the trivet into the pot first, then the steamer basket.
Don’t let it sit for too long before releasing pressure or the broccoli might over cook.