[cheebacheeba]

I can't say...I mean, I'm pretty into the whole chilli thang myself, so the kinda hotness i put on my recipes could well be quite fucked up...
All I can suggest is making the hot chocolate on your stove with REAL (solid, dark OR light to your tastes, NOT cooking chocolate) chocolate, FRESH cream, milk, brown sugar, a little nutmeg and cimmamon is pretty nice (again, the real-er the better), maybe even a little coconut, or some cloves and/or cardammon, if ur into those...no powdered shit whatsoever!!!
(The above is just how I like to have mine, not how you NEED to have it)

Mix a little relatively flavourless chilli powder (you know the stuff that just tastes "hot", that u use in cooking to add spice) up with like, a teaspoon of water...get a paste goin' on, as it'll diffuse easier this way.
All I can say is just take it in measures, and add it slowly in moderation to the hot chocolate mixture on the stove, it's not meant to be SHIT-HOT to you, but having the spice going thru chocolate just....hard to explain, just try it and you'll know....
Of course, not everyone would like this recipe, but it's one of my PERSONAL favourites.

If you wanna do it with coffee, I have only ever tried it with my espresso machine, i put about a half a teaspoon of the powder on top of where I put the ground coffee, then make as usual.

- B.