Step 1

Turn Instant Pot on Saute mode.  This will warm up the milk and water while we are adding ingredients and reduce the pressure building time.  This step is optional though.

Step 2

Add milk (see notes for substitute), water, pasta, seasonings, carrots and broccoli in the pot.  Stir and close the lid.  Pressure cook for 3 minutes. This time works for medium shell pasta, check notes for different pasta shapes.

Step 3

After cooking time is up, wait 5 minutes and then manually release the pressure in bursts. What that means is, release pressure 1-2 seconds at a time, then stop. Repeat this till most of the pressure has released and its intensity has gone down.

Step 4

Open the lid, add heavy whipping cream and shredded cheddar cheese and stir till everything comes together.  By stirring the broccoli florets will further break down and integrate in the sauce.

Step 5

If at this point, your pasta looks too dry, add 1/2 cup of boiling water. Add more or less cheese, depending on your preference!