Add the broccoli to the inner pot of your instant pot. Place the broccoli into a basket attachment, or just on top of the rivet that your instant pot came with.
Add the water and close the lid. Cook on high pressure for 0 minutes.
As soon as the Instant Pot comes to pressure, press the quick-release button immediately to release the pressure and remove broccoli.
Make sure to remove the broccoli immediately once the Instant Pot comes to full pressure to avoid it from becoming soggy.