I needed a chocolate fix today, and I got it in 30 minutes (courtesy of Sherpa's).
warm chocolate cake @ O'Malleys
Chocolate fondant in tinfoil. There's nothing like warm, gooey, melted chocolate to combat a cold and rainy day. It's nothing like Lapis Lazuli's Chocolate Nemesis, but for chocolate on demand, it definitely hits the spot. (Though it's only a shade better than the frozen chocolate puddings from Marks & Spencer, and twice more expensive.) (50RMB / US$8)
Address: 42 Taojiang Road x Wulumuqi Road, Shanghai
TEL: 6474 4533