Sometimes all you want is a chocolate cake. No fondants and fillers, just simple. And for that you should head to Little Oven in Long Island City, where from time to time, Chocolate Cake ($3.75) appears on the menu. One rectangular-cut piece of dark chocolate sheet cake and a silky buttercream to match. The crumb is tender and moist to the touch, the chocolate neither too intense or light, but an ideal pairing for vanilla buttercream that melts in the mouth. A sprinkle of toasted pistachios to top, and you've got the perfect afternoon nibble. Don't forget the Raspberry-Lychee Soda on your way out!