Not a usual blog post, but I'm enjoying this drink so much that I have to recommend it.
Raw cocoa powder actually has no sugar in it -- surprising. It's pretty bitter.
It also has a chemical composition quite similar, but slightly different from caffeine. I read on other sites that the come-down from it is easier than caffeine -- I don't know, because I do both in a day.
But it is a stimulant, definitely, and it's delicious.
Stevia is a non-carbohydrate sweetener.
Butter -- it's a fat, it makes it creamy, etc. See, EX, Bulletproof Coffee for the reasoning behind it. I'd add MCT Oil as well if I had any on me in Morocco.
Recommended strongly.