For an extra rich and creamy texture in your Butter Chicken, add a splash of heavy cream or coconut milk towards the end of cooking. This will make the sauce even smoother and add a luxurious mouthfeel without compromising the flavor. For a smoky twist, you can also try adding a small piece of charcoal to the gravy while it simmers (known as the dhungar method) for that authentic tandoor-like flavor!