Place the fusilli noodles in the inner pot of instant pot.
Add water, salt, garlic powder.
Close the instant pot with lid in sealing position, cook in high pressure for 2 minutes. Once the cooking is done, wait for a natural pressure release of 12 to 15 minutes, then gently and gradually release any remaining pressure.
Once the pressure is all released, carefully open the lid.
Add shredded cheese and heavy cream to the pasta, gently mix in to combine with the pasta evenly. Serve while still warm for the best results!