I'll go straight for dessert...
Adding chocolate to cold mousse will result in flecks of chocolate. It has to be added to something warm (usually the yolks), before folding in the whipped cream.
Candied orange zest with choc. and coffee doesn't have to be that bitter, but if you follow a very sweet dessert with it, the flavor will seem more bitter. In any case, the zest has to be cooked in simple syrup several times to get the bitterness out. |