At half a syn, you can add as many as you want. I also add them to scrambled eggs, cos that's the way I roll
As I mentioned, some people can't stand them, they are very, erm, buttery, but that's the idea lol. I have usually got syns to spare and with jackets, or mash, I just add them until I think it's Lurpak!
It works best with wet/moist food as this hydrates the powder.