Here's an excellent carob drink recipe (without exact measurements):
* Almond milk (not sweetened or flavored)
* Brown sugar
Heat it on the stovetop.
Anyway, it tastes kind of like hot chocolate with lots of marshmallows in it. It's not bitter at all. But yes, it doesn't taste exactly like hot chocolate with lots of marshmallows in it, and it certainly doesn't taste like hot chocolate without marshmallows in it. Whatever the case, it's good.