Wash hands with soap and water for 20 seconds.
Turn on pressure cooker to the Sauté setting, and add the onion and butter. Cook until translucent.
Add in rice and garlic, stir until all of the rice is coated in the butter.
Add the seasonings and broth.
Place lid on the pot and lock in place. Turn the steam release knob to the Sealing position.
Press the Pressure Cook or Manual button or dial, and then the +/- button or dial to select 24 minutes (High pressure).
When the cook time has finished, allow for a 10 minute natural release. Then turn the steam release knob to the venting position to do a manual release of the remaining steam/pressure.
Give the pilaf a good stir, and test for doneness. If the rice isn't soft enough, put the lid back on for a few minutes.
Add the remaining ingredients and stir. Serve warm.