Using the Saute function, saute the onions in a splash of water until they are softened and slightly translucent.
Add the garlic and saute for about 30 seconds more.
Add the carrots and celery and a few more splashes of water, as necessary, if the pot is dry. Saute for a few minutes until the vegetables are softened.
Add the chickpeas, wild rice, bay leaf, thyme, and vegetable broth or water and stir to combine.
Close the lid and set the timer for 25 minutes on Manual.
Allow the pressure to release naturally.
Meanwhile, in a high-speed blender such as a Vitamix, blend the cashews and 1/2 cup water until very smooth.
Remove the lid once the pressure has released. Add the cashew mixture and stir well. Add salt and pepper, to taste, and enjoy!