Prawn Butter masala

De vain prawns . Sauté cashews, tomato and onion in oil. After they are cooked nicely grind it In a blender. In a big pan just sauté butter few seconds. Add oil to avoid burning of butter. Add ground paste and let it cook Until think and no raw smell exist. Add dry powder for spicy . Then add prawn. At last add roasted kasthuri methi.