Step 1

Add all the ingredients (EXCEPT the pasta AND using ONLY 2 cups of the water) to a high speed blender and process until smooth and creamy. Transfer to your Instant Pot and add the remaining 3.5 cups of water and stir. Then place the pasta on top and gently push it down into the sauce.

Step 2

Close the lid and ensure the valve is set to the sealing position. Then cook on high pressure for 4 minutes (it will take about 10 minutes to reach pressure) and quick release immediately once the timer is complete. Open the lid once safe to do so, give everything a good stir, and serve.

Step 3

Bring a large pot of water to boil and cook your pasta according to package directions. Then drain and return to the pot.

Step 4

Meanwhile, add the cheese sauce ingredients (using ONLY 2 cups of the water) to your blender and process until smooth. Pour the sauce over your drained pasta, mix well, and serve.