Nothing. I forgot it's meant to be used directly on top of one of those flavour bars. I thought I could use it like a different tube that has more perforations. So the smoke didn't really take as it was sitting on the grill top. Next time, down underneath.
The good thing about proper Indian masalas (find a good place to buy them), is that they usually don't have salt in them. They give you that option. In fact, this masala is rather bland without the addition of salt.