Add the coconut milk, bay leaves, bone broth, cauliflower, celery, black pepper, salt, and onion to the Instant Pot. Stir thoroughly.
Close the lid, set the pressure release to Sealing, and select Manual/Pressure Cook . Set the Instant Pot to 5 minutes on high pressure and let cook.
Once cooked, let the pressure naturally disperse from the Instant Pot for about 3 minutes, then carefully switch the pressure release to Venting. Open the Instant Pot, remove bay leaves with tongs, and then stir in the clams and whipping cream.
Turn on Sauté mode, and let cook for 2 to 3 minutes (or until desired consistency). Serve, and enjoy!