A common hack to get your kids to eat anything, is to force them to try it at least 10 different times. They always keep spitting it out or crying they don't like it. Eventually one time you feed it to them and they get used to it and like it, as if they never threw a fit with it before. Not everybody's parents did this. That's why there's grown adults that eat nothing but pizza or steak and potatoes...
P.S. that being said, I still don't like broccoli.... Might be one of the only foods I've never liked in any shape or form...
P.P.S. I've had that salty black licorice before when I visited Sweden. I enjoyed it in very small doses.