The nineteenth recipe that I made from Bake! by Nick Malgieri was Citrus-Scented Chocolate Tart, found on page 22, with a Cocoa Sweet Pastry Dough, found on page 14.
Matt is off at college now, so it is just Mark eating the chocolate desserts here (and packing them into his lunches). He enjoyed this very much, said it had a nice citrus flavor with the chocolate that was unusual and delicious. (I also sprinkled, heavily actually, orange zest on the whipped cream as well.) A repeat for him...and it is something that can sit at room temperature (without the whipped cream topping), so I will bake one and take it down to Matt the next time I visit so he can do a little entertaining in his dorm room with a homemade dessert. Best part: it's very easy and quick to make.