This deliciously different grilled halibut is topped with a sweet, tangy, savory chili banana tamarind sauce. No one will ever guess that the sauce contains bananas!
In a Vitamix or blender, put the chilis, bananas, cumin, chili powder, tamarind paste, oil and lime juice. Blend until the sauce is completely smooth, adding the reserved soaking liquid a tablespoon at a time until thick as pudding and spreadable. It should not be so thick that it cannot be evenly spread on the grilled halibut.