This is for those days or evenings when you want to usher a little something out of the kitchen that makes you thrill at the sheer pleasure you've conjured up. It isn't about showing off, it's about intensity: meringue that's marshmallow-gungy within and chewily crisp without, cocoa-flecked and feathery light; together with a slick, glossy creme patissiere into which you've stirred the darkest of dark chocolates. I didn't think I believed in such things, but this is it: chocolate heaven. For US cup measures, use the toggle at the top of the ingredients list.