Place trivet in bottom of Instant Pot. Add water and broccoli florets.
Place lid on Instant Pot and set valve to Sealing position. Set to Manual High Pressure for 0 minutes (for firm broccoli) or 1 minute (for very tender broccoli)
Allow Instant Pot to come to pressure. After cooking is complete, Quick Release and remove lid.
Remove broccoli from Instant Pot. Serve as desired.
Source:
Ingredients, equipment, and instructions have been taken from here