In the instant pot, add in the macaroni, chicken broth, butter, garlic powder, salt, and pepper.

Cover and make sure valve is set to sealing. Select manual and set for 5 minutes.

Once done, release pressure manually. If you get any foaming from the valve close back up and try again in a couple of minutes. The foaming should stop. This sometimes happens when doing a quick release with pasta.

Remove lid and mix in cheese and milk. Stir until all the cheese is melted. Serves 6-8.