Prepare the Ingredients: Open the box of Kraft Mac and Cheese and take out the pasta and cheese powder. You'll also need water, butter, and milk.
Add Pasta and Water: Place the macaroni pasta into the Instant Pot. Add enough water to fully submerge the pasta, usually about 2 cups for a standard box.
Cook on High Pressure: Seal the Instant Pot and set it to cook on High Pressure for half of the pasta's recommended cooking time. If the box suggests 7-8 minutes, set the Instant Pot for 3-4 minutes.
Quick Release Pressure: Once the cooking time is up, perform a quick pressure release by carefully turning the steam release valve. Be cautious of the hot steam.
Drain Pasta: Open the Instant Pot and use a colander to drain the pasta.
Make the Cheese Sauce: Return the pasta to the Instant Pot and add the butter, milk, and cheese powder. Stir until everything is well combined and the cheese sauce is smooth and creamy.
Serve and Enjoy: Your Instant Pot Boxed Mac and Cheese is ready to be served! Enjoy your quick and cheesy comfort food.