Boil the cashews in water for 10 minutes to soften. Drain.
Put all the ingredients EXCEPT rice and pimentos into a blender. Blend until smooth.
Add half the pimentos and blend again until they are incorporated.
Scoop the mixture into a bowl.
Chop the remaining pimentos. add them, with the rice, into the bowl, and stir until mixed.
Cover with plastic wrap, pressing onto the cheez to protect it from air. Refrigerate for a few hours or overnight to allow the rice to absorb the flavors.