Set the instant pot to sauté mode and add the salted butter, ground beef and diced onions. Crumble and sauté the beef and onions until the hamburger is no longer pick and the onions are translucent.
Stir in the minced garlic and cook for one minute or until garlic is fragrant.
Next, stir in the spices: salt, black pepper, paprika and mustard powder.
Deglaze the pot with the chicken broth and scrape the bottom of the pot.
Pour in the macaroni. Do NOT stir. Simply push the pasta down so it is almost all completely covered with liquid.
Turn the instant pot off and put the lid on. Turn the valve to the sealing position. Set the instant pot to manual high pressure for 5 minutes.
Once the 5 minute cook time is done, carefully do a quick release. Once the pin has dropped, remove the lid. Stir the pasta around so it is not stuck together.
Add a handful of cheese and stir it together until its melted. Repeat until all the cheese is added and melted.
Finally, stir in the milk to make it nice and creamy.
Garnish with chopped dill pickles, serve and enjoy!